NestJS (https://nestjs.com/) is a Node.js framework for building server-side applications. This slide give you a brief introduction of Nest, and shows the examples like Service, Middleware, and Pipe, etc.
Slides from the NestJS MasterClass.
We learned how to build JavaScript server-side applications with NestJS - A progressive NodeJS framework built with TypeScript.
You can find the code on GitHub:
https://github.com/nirkaufman/task-manager
Nest.js is a Node.js framework that uses an architecture-oriented approach to build scalable and loosely coupled applications. It is inspired by Angular and uses modules, dependency injection, and other features to build progressive web apps. Nest.js allows developers to split code into reusable units and easily integrate with databases and other technologies through a clean architecture.
This talk is about Nestjs and how it can help you build clean Nodejs backend apps, we will be covering also essential web development and JavaScript must know technologies and tools such as TypeScript and others.
A walkthrough the main principles to reach solid NodeJS Applications with TypeScript language, Jest as Test Runner and NestJS as framework for structure.
Apresentação sobre NestJS, framework Node.js e Typescript, com explicação do seu funcionamento e exemplos práticos de como utiliza-lo para criar aplicações do lado servidor.
Evento: OpenLabs 2019 - VI Conferência de Tecnologia da Região Serrana - 31/03/2019
Disponível também em: https://github.com/openlabsconf/openlabs-vi
Site do evento: http://openlabsconf.com.br/
Node.js Tutorial for Beginners | Node.js Web Application Tutorial | Node.js T...Edureka!
This Edureka "Node.js tutorial" will help you to learn the Node.js fundamentals and how to create an application in Node.js. Node.js is an open-source, cross-platform JavaScript runtime environment for developing a diverse variety of server tools and applications. Below are the topics covered in this tutorial:
1) Client Server Architecture
2) Limitations of Multi-Threaded Model
3) What is Node.js?
4) Features of Node.js
5) Node.js Installation
6) Blocking Vs. Non – Blocking I/O
7) Creating Node.js Program
8) Node.js Modules
9) Demo – Grocery List Web Application using Node.js
O documento apresenta Vanessa, uma professora e desenvolvedora que é estudante de mestrado em ciência da computação. Ela coordena o coletivo hacker feminista Marialab e discute desafios comuns de design e arquitetura de software, principalmente com JavaScript.
Slides from the NestJS MasterClass.
We learned how to build JavaScript server-side applications with NestJS - A progressive NodeJS framework built with TypeScript.
You can find the code on GitHub:
https://github.com/nirkaufman/task-manager
Nest.js is a Node.js framework that uses an architecture-oriented approach to build scalable and loosely coupled applications. It is inspired by Angular and uses modules, dependency injection, and other features to build progressive web apps. Nest.js allows developers to split code into reusable units and easily integrate with databases and other technologies through a clean architecture.
This talk is about Nestjs and how it can help you build clean Nodejs backend apps, we will be covering also essential web development and JavaScript must know technologies and tools such as TypeScript and others.
A walkthrough the main principles to reach solid NodeJS Applications with TypeScript language, Jest as Test Runner and NestJS as framework for structure.
Apresentação sobre NestJS, framework Node.js e Typescript, com explicação do seu funcionamento e exemplos práticos de como utiliza-lo para criar aplicações do lado servidor.
Evento: OpenLabs 2019 - VI Conferência de Tecnologia da Região Serrana - 31/03/2019
Disponível também em: https://github.com/openlabsconf/openlabs-vi
Site do evento: http://openlabsconf.com.br/
Node.js Tutorial for Beginners | Node.js Web Application Tutorial | Node.js T...Edureka!
This Edureka "Node.js tutorial" will help you to learn the Node.js fundamentals and how to create an application in Node.js. Node.js is an open-source, cross-platform JavaScript runtime environment for developing a diverse variety of server tools and applications. Below are the topics covered in this tutorial:
1) Client Server Architecture
2) Limitations of Multi-Threaded Model
3) What is Node.js?
4) Features of Node.js
5) Node.js Installation
6) Blocking Vs. Non – Blocking I/O
7) Creating Node.js Program
8) Node.js Modules
9) Demo – Grocery List Web Application using Node.js
O documento apresenta Vanessa, uma professora e desenvolvedora que é estudante de mestrado em ciência da computação. Ela coordena o coletivo hacker feminista Marialab e discute desafios comuns de design e arquitetura de software, principalmente com JavaScript.
End to end todo list app with NestJs - Angular - Redux & Redux SagaBabacar NIANG
The document discusses building a todo list application using NestJS for the backend API, Angular for the frontend, and Redux/Redux Saga for state management. It provides an overview of setting up the NestJS API including creating modules, services, and connecting to MongoDB. It then covers generating the initial Angular application and importing Redux libraries. Finally, it details how to manage application state with Redux including creating actions, reducers, effects, and selectors and integrating them with the Angular application and NestJS services.
Do you hear of Vue.js everywhere lately? With this presentation, you will be able to create your first app in just 30 minutes. Understand the basics and get yourself a solid knowledge to start your journey with the new progressive JavaScript Framework.
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript. It is an update to AngularJS with a focus on mobile and typesafety. Major versions include Angular 1.x, 2.x, 4.x and 5.x. Angular uses components, services and modules to build applications with templates and styles. It is compiled to JavaScript using transpilation and supports AOT and JIT compilation. Common tools used with Angular include the Angular CLI, Webpack and Zone.js.
The document outlines the agenda for a presentation on Node.js, which includes defining what Node.js is, how it works, examples of its use, how to learn Node.js, and what problems it is well-suited to solve. Key points are that Node.js is a JavaScript runtime built on Chrome's V8 engine, uses non-blocking I/O, and is well-suited for building microservices and real-time applications that require high throughput and scalability. Recommended resources for learning more include nodeschool.io, codewars.com, and nodeup.com.
This document provides an overview of Spring Boot and some of its key features. It discusses the origins and modules of Spring, how Spring Boot simplifies configuration and dependency management. It then covers examples of building Spring Boot applications that connect to a SQL database, use RabbitMQ for messaging, and schedule and run asynchronous tasks.
This document provides an introduction to Node.js. It discusses why JavaScript can be strange, but explains that JavaScript is relevant as the language of the web. It then discusses what Node.js is and its event-driven, non-blocking architecture. Popular Node.js applications like HTTP servers, REST APIs, and web sockets are mentioned. Examples are provided of building a simple web app with Express and Jade, a REST API with Restify, and using web sockets with Socket.io. The document also discusses using Mongoose with MongoDB for data modeling.
The document discusses the benefits of using RxJS observables over promises and events for managing asynchronous and reactive code in Angular applications. It explains key concepts like observers, subscriptions, operators, cold vs hot observables, and using RxJS with services and components. Example code is provided for creating observable data services to share data between components, composing asynchronous logic with operators, and best practices for managing subscriptions and preventing memory leaks. Overall, the document promotes a reactive programming style with RxJS for building maintainable and testable Angular applications.
This document provides an overview of ExpressJS, a web application framework for Node.js. It discusses using Connect as a middleware framework to build HTTP servers, and how Express builds on Connect by adding functionality like routing, views, and content negotiation. It then covers basic Express app architecture, creating routes, using views with different template engines like Jade, passing data to views, and some advanced topics like cookies, sessions, and authentication.
This document provides an overview and explanation of React Hooks. It introduces common Hooks like useState, useEffect, useReducer, and custom hooks. useState is used to add local state to functional components. useEffect is similar to component lifecycle methods and lets you perform side effects. useReducer is an alternative to useState for managing state in a single object. Custom hooks let you extract reusable logic and share it without changing components. The document also includes a FAQ addressing questions about hooks and class components.
Angular - Chapter 4 - Data and Event HandlingWebStackAcademy
The document provides information about Angular data binding and event handling. It discusses how interpolation can be used to connect data from a component class to its template. It also explains how property binding and event binding allow two-way communication between the component class and template. Finally, it introduces ngModel for setting up two-way data binding between an input element and a property.
Vue.js is a progressive JavaScript framework that focuses on building user interfaces and is used for single-page applications. It was created by Evan You and released in 2014. Vue.js uses declarative templates and reactive data binding to render the view layer for an application. Templates in Vue use HTML-based syntax with directives prefixed with v- to dynamically bind expression results. Common directives include v-bind, v-if, and v-for. Vue.js applications can be built with its core library or integrated with other libraries and frameworks.
This is an introduction to NodeJS which is an open-source, cross-platform run-time environment for developing server-side Web Applications. It also discusses the implications of NodeJS in Internet of Things (IoT).
This document provides an agenda for discussing JavaScript ES6 features such as promises, arrow functions, constants, modules, classes, transpilation, default parameters, and template strings. It also discusses how to use ES6 today via transpilation with tools like Babel and Traceur, and which companies are using ES6 and those transpilation tools.
The document provides an overview of the React Context API, including what it is, when to use it, and how to use it. It explains that the Context API was introduced by React to solve the problem of prop drilling and make state management simpler for developers. It describes the key aspects of using the Context API, such as creating contexts with React.createContext, rendering context providers with Context.Provider, and subscribing to contexts within components using Context.Consumer. Examples and additional resources on the Context API are also provided.
Node.js is a JavaScript runtime built on Chrome's V8 engine that runs JavaScript on the server side. It is fast and designed for high concurrency without threads or processes. Node uses an event loop with callbacks for asynchronous and non-blocking I/O, allowing it to handle many requests concurrently without wasting resources. This makes Node well-suited for building fast servers that can handle a high volume of requests.
The document provides an overview of Node.js and the Express web framework. It discusses that Node.js is a platform for executing JavaScript files and includes utilities for network and file I/O. Express is a web application framework built on Node.js that uses middleware to handle requests. The document covers Express concepts like routing, middleware, templating, and popular middleware modules for tasks like compression, parsing request bodies, and sessions.
This document provides an overview and comparison of different approaches for building mobile applications, including native and hybrid approaches. It discusses React Native specifically and its advantages, such as allowing developers to build mobile apps for Android and iOS using React with a single codebase, while still providing access to native platform features and a native user experience. It also covers topics like navigation, testing, publishing apps, and some challenges with React Native like dealing with JavaScript errors in production.
End to end todo list app with NestJs - Angular - Redux & Redux SagaBabacar NIANG
The document discusses building a todo list application using NestJS for the backend API, Angular for the frontend, and Redux/Redux Saga for state management. It provides an overview of setting up the NestJS API including creating modules, services, and connecting to MongoDB. It then covers generating the initial Angular application and importing Redux libraries. Finally, it details how to manage application state with Redux including creating actions, reducers, effects, and selectors and integrating them with the Angular application and NestJS services.
Do you hear of Vue.js everywhere lately? With this presentation, you will be able to create your first app in just 30 minutes. Understand the basics and get yourself a solid knowledge to start your journey with the new progressive JavaScript Framework.
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript. It is an update to AngularJS with a focus on mobile and typesafety. Major versions include Angular 1.x, 2.x, 4.x and 5.x. Angular uses components, services and modules to build applications with templates and styles. It is compiled to JavaScript using transpilation and supports AOT and JIT compilation. Common tools used with Angular include the Angular CLI, Webpack and Zone.js.
The document outlines the agenda for a presentation on Node.js, which includes defining what Node.js is, how it works, examples of its use, how to learn Node.js, and what problems it is well-suited to solve. Key points are that Node.js is a JavaScript runtime built on Chrome's V8 engine, uses non-blocking I/O, and is well-suited for building microservices and real-time applications that require high throughput and scalability. Recommended resources for learning more include nodeschool.io, codewars.com, and nodeup.com.
This document provides an overview of Spring Boot and some of its key features. It discusses the origins and modules of Spring, how Spring Boot simplifies configuration and dependency management. It then covers examples of building Spring Boot applications that connect to a SQL database, use RabbitMQ for messaging, and schedule and run asynchronous tasks.
This document provides an introduction to Node.js. It discusses why JavaScript can be strange, but explains that JavaScript is relevant as the language of the web. It then discusses what Node.js is and its event-driven, non-blocking architecture. Popular Node.js applications like HTTP servers, REST APIs, and web sockets are mentioned. Examples are provided of building a simple web app with Express and Jade, a REST API with Restify, and using web sockets with Socket.io. The document also discusses using Mongoose with MongoDB for data modeling.
The document discusses the benefits of using RxJS observables over promises and events for managing asynchronous and reactive code in Angular applications. It explains key concepts like observers, subscriptions, operators, cold vs hot observables, and using RxJS with services and components. Example code is provided for creating observable data services to share data between components, composing asynchronous logic with operators, and best practices for managing subscriptions and preventing memory leaks. Overall, the document promotes a reactive programming style with RxJS for building maintainable and testable Angular applications.
This document provides an overview of ExpressJS, a web application framework for Node.js. It discusses using Connect as a middleware framework to build HTTP servers, and how Express builds on Connect by adding functionality like routing, views, and content negotiation. It then covers basic Express app architecture, creating routes, using views with different template engines like Jade, passing data to views, and some advanced topics like cookies, sessions, and authentication.
This document provides an overview and explanation of React Hooks. It introduces common Hooks like useState, useEffect, useReducer, and custom hooks. useState is used to add local state to functional components. useEffect is similar to component lifecycle methods and lets you perform side effects. useReducer is an alternative to useState for managing state in a single object. Custom hooks let you extract reusable logic and share it without changing components. The document also includes a FAQ addressing questions about hooks and class components.
Angular - Chapter 4 - Data and Event HandlingWebStackAcademy
The document provides information about Angular data binding and event handling. It discusses how interpolation can be used to connect data from a component class to its template. It also explains how property binding and event binding allow two-way communication between the component class and template. Finally, it introduces ngModel for setting up two-way data binding between an input element and a property.
Vue.js is a progressive JavaScript framework that focuses on building user interfaces and is used for single-page applications. It was created by Evan You and released in 2014. Vue.js uses declarative templates and reactive data binding to render the view layer for an application. Templates in Vue use HTML-based syntax with directives prefixed with v- to dynamically bind expression results. Common directives include v-bind, v-if, and v-for. Vue.js applications can be built with its core library or integrated with other libraries and frameworks.
This is an introduction to NodeJS which is an open-source, cross-platform run-time environment for developing server-side Web Applications. It also discusses the implications of NodeJS in Internet of Things (IoT).
This document provides an agenda for discussing JavaScript ES6 features such as promises, arrow functions, constants, modules, classes, transpilation, default parameters, and template strings. It also discusses how to use ES6 today via transpilation with tools like Babel and Traceur, and which companies are using ES6 and those transpilation tools.
The document provides an overview of the React Context API, including what it is, when to use it, and how to use it. It explains that the Context API was introduced by React to solve the problem of prop drilling and make state management simpler for developers. It describes the key aspects of using the Context API, such as creating contexts with React.createContext, rendering context providers with Context.Provider, and subscribing to contexts within components using Context.Consumer. Examples and additional resources on the Context API are also provided.
Node.js is a JavaScript runtime built on Chrome's V8 engine that runs JavaScript on the server side. It is fast and designed for high concurrency without threads or processes. Node uses an event loop with callbacks for asynchronous and non-blocking I/O, allowing it to handle many requests concurrently without wasting resources. This makes Node well-suited for building fast servers that can handle a high volume of requests.
The document provides an overview of Node.js and the Express web framework. It discusses that Node.js is a platform for executing JavaScript files and includes utilities for network and file I/O. Express is a web application framework built on Node.js that uses middleware to handle requests. The document covers Express concepts like routing, middleware, templating, and popular middleware modules for tasks like compression, parsing request bodies, and sessions.
This document provides an overview and comparison of different approaches for building mobile applications, including native and hybrid approaches. It discusses React Native specifically and its advantages, such as allowing developers to build mobile apps for Android and iOS using React with a single codebase, while still providing access to native platform features and a native user experience. It also covers topics like navigation, testing, publishing apps, and some challenges with React Native like dealing with JavaScript errors in production.
React Native for multi-platform mobile applicationsMatteo Manchi
Since its 2013 release, React has brought a new way to design UI components in the world wide web. The same foundamentals have been taken to another important environment in our contemporary world: the mobile application.
This month we'll see the philosophy behind React Native - learn once, write anywhere - and how this new framework helps new developers to build native apps using React.
Vue.js is an open-source progressive framework for building user interfaces that focuses on the view layer. It has a virtual DOM and reactive components. Its core is small and works well with companion libraries. Single file components allow importing of templates, logic, and styles. Popular companion libraries include Vuex for state management and Vue Router for routing. The Vue CLI makes it easy to scaffold Vue projects with features like routing, lazy loading, and preloading for improved performance.
Everyone knows that Silex is a great microframework for APIs and small sites, but what do you do when you want to build a large site, or your little tiny site has grown up? Silex has many different ways to let you build larger, complex websites that might still be too small for Symfony, but have outgrown the single page app it once was. We’ll look at what Silex offers us, and different ways we can structure our site.
The document introduces Node.js and explains why the author thinks it is the future of web development. Node.js is described as fast, event-driven, non-blocking, and implemented in V8. It is useful for building servers but also has other applications. The document then discusses how Node.js uses callbacks and asynchronous operations to avoid blocking behavior. It provides examples of Node.js code and modules. Common modules like Express.js and Connect.js are described. Finally, it discusses the NPM package manager and some popular Node.js modules.
This document discusses microservices using Node.js and JavaScript. It covers building an HTTP microservice with Express including routing, structure, database integration, logging and testing. It also discusses building command-based microservices with Seneca including patterns, plugins, and queueing. Finally, it discusses containerization with Docker, API gateways, testing, process management with PM2, and some considerations around when microservices may not be the best solution.
Programming Sideways: Asynchronous Techniques for AndroidEmanuele Di Saverio
Android apps need to respond fast, support highly parallel execution and multi component architecture.
Learn some tricks of the trade for these problems!
as presented at www.mobileconference.it (2013 edition)
This document discusses building a JavaScript widget that provides messaging functionality across different platforms and browsers. It outlines requirements such as being cross-browser compatible, supporting customization, and allowing for updates without relying on third parties. It then describes the proposed architecture, which includes abstracting the API, developing the widget component, handling customizations, and enabling updates and A/B testing through a service called FAAST. The document emphasizes testing, continuous delivery, and automation to streamline the release process.
09 - express nodes on the right angle - vitaliy basyuk - it event 2013 (5)Igor Bronovskyy
09 - Express Nodes on the right Angle - Vitaliy Basyuk - IT Event 2013 (5)
60 вузлів під правильним кутом - миттєва розробка програмних додатків використовуючи Node.js + Express + MongoDB + AngularJS.
Коли ми беремось за новий продукт, передусім ми думаємо про пристрасть, яка необхідна йому, щоб зробити користувача задоволеним і відданим нашому баченню. А що допомагає нам здобути прихильність користувачів? Очевидно, що окрім самої ідеї, також важлими будуть: зручний користувацький інтерфейс, взаємодія в реальному часі та прозора робота з даними. Ці три властивості ми можемо здобути використовучи ті чи інші засоби, проте, коли все лиш починається, набагато зручніше, якщо інструменти допомагають втілити бажане, а не відволікають від головної мети.
Ми розглянемо процес розробки, використовуючи Node.js, Express, MongoDB та AngularJS як найбільш корисного поєднання для отримання вагомої переваги вже на старті вашого продукту.
Віталій Басюк
http://itevent.if.ua/lecture/express-nodes-right-angle-rapid-application-development-using-nodejs-express-mongodb-angular
Ansible is an open source automation platform, written in Python, that can be used for configuration-management, application deployment, cloud provisioning, ad-hoc task-execution, multinode orchestration and so on. This talk is an introduction to Ansible for beginners, including tips like how to use containers to mimic multiple machines while iteratively automating some tasks or testing.
This document provides an overview of key concepts for developing applications with Symfony2 including: setting up the framework, code flow, dependency injection, configuration, controllers, applications, Doctrine integration, caching, performance tips, asset management, testing, deployment, third party bundles, and resources for contributing to Symfony2. It discusses service definitions, controller choices, application choices, Doctrine examples, caching strategies, performance optimization techniques, testing approaches, deployment options, and how to work with third party bundles.
Aman Mishra from TO THE NEW walks through Vue.Js. It gives an introduction about Vue.js, popularity, size comparison, template syntax, the importance of Vue.js and much more.
10 Excellent Ways to Secure Spring Boot Applications - Okta Webinar 2020Matt Raible
Spring Boot is an efficient way to build Java applications with the Spring Framework. If you’re developing apps that handle sensitive data, you should make sure they’re secure.
This session will cover HTTPS, dependency checking, CSRF, using a CSP to prevent XSS, OIDC, password hashing, and much more!
You’ll learn how to add these features to a real application, using the Java language you know and love.
* Blog post: https://developer.okta.com/blog/2018/07/30/10-ways-to-secure-spring-boot
* Cheat sheet: https://snyk.io/blog/spring-boot-security-best-practices/
* OIDC demo: http://bit.ly/spring-oidc-demo
Slides presented at the Vue.js meetup in Paris the 3rd of December 2016.
Nuxt.js is a minimalist framework for server-rendered Vue.js applications.
https://nuxtjs.org
It’s trivial today to start writing and debugging some React code, but it’s not 100% clear how to properly deploy the application, manage versions and what implications that has on the build configurations. Especially if you want to allow different versions for different users in order to perform some A/B testing, testing new features in production environment, come up with some UI experiments, or gradually roll out new features for a subset of users.
In this presentation I hopefully covered all that.
This document provides an overview of key concepts in Angular 2, including:
- Components form the building blocks of an Angular 2 application and use metadata to configure selector, template, and more.
- Templates can be defined inline using TypeScript template strings or external template files.
- Property and event bindings allow components to share data and handle user input.
- Dependency injection provides services to components through their constructors similarly to AngularJS but with additional capabilities like child injectors.
- Pipes allow transforming values in templates similarly to filters in AngularJS.
- Annotations like @Component and @View configure components.
- The framework is actively developed with an
Using API mocking tools in the browser helps front-end developers to build web application without having to rely on any backend services.
Mirage runs a mock server alongside the rest of your frontend JavaScript code and existing code dose not need to be changed. It also provides many rich tools for data modelling.
This is a guide for product issues management and development process using Jira. The Issue Types and Workflows can be customized by Jira system administrators. Every development team should always discuss and define its own standards to follow. This slide shows the common Issue Types and Workflows for your reference, and some brief views of the Scrum Board and Reports.
This slide contains two parts of content. First, CSS Grid Layout, offering a grid-based layout system, with rows and columns, making it easier to design web pages without having to use floats and positioning. Second, Progressive Web App, using modern web capabilities to deliver an app-like experience to users on desktop and mobile.
Responsive web design allows a single template to be delivered across all devices by using media queries to detect the device. It allows for longer page loads but existing websites do not need rebuilding. Adaptive web design delivers separate templates for each device through server-side detection, allowing for faster page loads but requiring alterations to existing websites. CSS media queries and breakpoints are important techniques for responsive design, along with fluid grids, modifying box size, spacing, fonts and images based on screen width. Common patterns include revealing, transforming, dividing, reflowing, expanding and positioning content. Single page applications load all necessary code at once allowing speedy secondary page loads but can increase initial load time and complexity.
Practical JavaScript Programming - Session 8/8Wilson Su
This document discusses various development tools for JavaScript programming, including Node.js, TypeScript, Babel, linters, task runners, module bundlers, and testing tools. It provides descriptions and examples of using Node.js, Yarn, TypeScript, Babel, ESLint, TSLint, Grunt, Gulp, Webpack, Chrome DevTools, Jasmine, Mocha, Chai, Karma, Selenium, Protractor, PhantomJS, and CasperJS. The document aims to help programmers select and use the appropriate tools at different stages of development.
Practical JavaScript Programming - Session 7/8Wilson Su
JavaScript is one of the most popular skills in today’s job market. It allows you to create both client- and server-side applications quickly and easily. Having a solid understanding of this powerful and versatile language is essential to anyone who uses it.
“Practical JavaScript Programming” does not only focus on best practices, but also introduces the fundamental concepts. This course will take you from JavaScript basics to advanced. You’ll learn about topics like Data Types, Functions, Events, AJAX and more.
Practical JavaScript Programming - Session 6/8Wilson Su
JavaScript is one of the most popular skills in today’s job market. It allows you to create both client- and server-side applications quickly and easily. Having a solid understanding of this powerful and versatile language is essential to anyone who uses it.
“Practical JavaScript Programming” does not only focus on best practices, but also introduces the fundamental concepts. This course will take you from JavaScript basics to advanced. You’ll learn about topics like Data Types, Functions, Events, AJAX and more.
Practical JavaScript Programming - Session 5/8Wilson Su
JavaScript is one of the most popular skills in today’s job market. It allows you to create both client- and server-side applications quickly and easily. Having a solid understanding of this powerful and versatile language is essential to anyone who uses it.
“Practical JavaScript Programming” does not only focus on best practices, but also introduces the fundamental concepts. This course will take you from JavaScript basics to advanced. You’ll learn about topics like Data Types, Functions, Events, AJAX and more.
Practical JavaScript Programming - Session 4/8Wilson Su
JavaScript is one of the most popular skills in today’s job market. It allows you to create both client- and server-side applications quickly and easily. Having a solid understanding of this powerful and versatile language is essential to anyone who uses it.
“Practical JavaScript Programming” does not only focus on best practices, but also introduces the fundamental concepts. This course will take you from JavaScript basics to advanced. You’ll learn about topics like Data Types, Functions, Events, AJAX and more.
Practical JavaScript Programming - Session 3/8Wilson Su
JavaScript is one of the most popular skills in today’s job market. It allows you to create both client- and server-side applications quickly and easily. Having a solid understanding of this powerful and versatile language is essential to anyone who uses it.
“Practical JavaScript Programming” does not only focus on best practices, but also introduces the fundamental concepts. This course will take you from JavaScript basics to advanced. You’ll learn about topics like Data Types, Functions, Events, AJAX and more.
Practical JavaScript Programming - Session 2/8Wilson Su
JavaScript is one of the most popular skills in today’s job market. It allows you to create both client- and server-side applications quickly and easily. Having a solid understanding of this powerful and versatile language is essential to anyone who uses it.
“Practical JavaScript Programming” does not only focus on best practices, but also introduces the fundamental concepts. This course will take you from JavaScript basics to advanced. You’ll learn about topics like Data Types, Functions, Events, AJAX and more.
Practical JavaScript Programming - Session 1/8Wilson Su
JavaScript is one of the most popular skills in today’s job market. It allows you to create both client- and server-side applications quickly and easily. Having a solid understanding of this powerful and versatile language is essential to anyone who uses it.
“Practical JavaScript Programming” does not only focus on best practices, but also introduces the fundamental concepts. This course will take you from JavaScript basics to advanced. You’ll learn about topics like Data Types, Functions, Events, AJAX and more.
Software Engineering and Project Management - Introduction, Modeling Concepts...Prakhyath Rai
Introduction, Modeling Concepts and Class Modeling: What is Object orientation? What is OO development? OO Themes; Evidence for usefulness of OO development; OO modeling history. Modeling
as Design technique: Modeling, abstraction, The Three models. Class Modeling: Object and Class Concept, Link and associations concepts, Generalization and Inheritance, A sample class model, Navigation of class models, and UML diagrams
Building the Analysis Models: Requirement Analysis, Analysis Model Approaches, Data modeling Concepts, Object Oriented Analysis, Scenario-Based Modeling, Flow-Oriented Modeling, class Based Modeling, Creating a Behavioral Model.
Batteries -Introduction – Types of Batteries – discharging and charging of battery - characteristics of battery –battery rating- various tests on battery- – Primary battery: silver button cell- Secondary battery :Ni-Cd battery-modern battery: lithium ion battery-maintenance of batteries-choices of batteries for electric vehicle applications.
Fuel Cells: Introduction- importance and classification of fuel cells - description, principle, components, applications of fuel cells: H2-O2 fuel cell, alkaline fuel cell, molten carbonate fuel cell and direct methanol fuel cells.
Rainfall intensity duration frequency curve statistical analysis and modeling...bijceesjournal
Using data from 41 years in Patna’ India’ the study’s goal is to analyze the trends of how often it rains on a weekly, seasonal, and annual basis (1981−2020). First, utilizing the intensity-duration-frequency (IDF) curve and the relationship by statistically analyzing rainfall’ the historical rainfall data set for Patna’ India’ during a 41 year period (1981−2020), was evaluated for its quality. Changes in the hydrologic cycle as a result of increased greenhouse gas emissions are expected to induce variations in the intensity, length, and frequency of precipitation events. One strategy to lessen vulnerability is to quantify probable changes and adapt to them. Techniques such as log-normal, normal, and Gumbel are used (EV-I). Distributions were created with durations of 1, 2, 3, 6, and 24 h and return times of 2, 5, 10, 25, and 100 years. There were also mathematical correlations discovered between rainfall and recurrence interval.
Findings: Based on findings, the Gumbel approach produced the highest intensity values, whereas the other approaches produced values that were close to each other. The data indicates that 461.9 mm of rain fell during the monsoon season’s 301st week. However, it was found that the 29th week had the greatest average rainfall, 92.6 mm. With 952.6 mm on average, the monsoon season saw the highest rainfall. Calculations revealed that the yearly rainfall averaged 1171.1 mm. Using Weibull’s method, the study was subsequently expanded to examine rainfall distribution at different recurrence intervals of 2, 5, 10, and 25 years. Rainfall and recurrence interval mathematical correlations were also developed. Further regression analysis revealed that short wave irrigation, wind direction, wind speed, pressure, relative humidity, and temperature all had a substantial influence on rainfall.
Originality and value: The results of the rainfall IDF curves can provide useful information to policymakers in making appropriate decisions in managing and minimizing floods in the study area.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
2. Introduction
NestJS
− is a framework for building Node.js server-side applications
− is built with and fully supports TypeScript
− allows developers to create testable, scalable, loosely coupled, and
easily maintainable applications
− the architecture is heavily inspired by Angular
7. /src/app.controller.ts
import { Controller, Get } from '@nestjs/common';
import { AppService } from './app.service';
@Controller()
export class AppController {
constructor(private readonly appService: AppService) { }
@Get()
getHello(): string {
return this.appService.getHello();
}
}
8. /src/app.module.ts
import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
@Module({
imports: [],
controllers: [AppController],
providers: [AppService],
})
export class AppModule { }
9. /src/main.ts
import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
async function bootstrap() {
const app = await NestFactory.create(AppModule);
await app.listen(3000);
}
bootstrap();
10. Nest CLI
# Compiles and runs an application in watch mode
$ nest start --watch
# Compiles an application or workspace into an output folder.
$ nest build
# Generates files based on a schematic
$ nest generate module cats
$ nest generate controller cats
$ nest generate service cats
...
19. A Bad API Call
GET /cats/abc
/* Nest will throw an exception */
{
"statusCode": 400,
"message": "Validation failed (numeric string is expected)",
"error": "Bad Request"
}