Weitere ähnliche Inhalte Ähnlich wie Node予備校 vol.1 名古屋 (20) Mehr von Mori Shingo (15) Kürzlich hochgeladen (11) 10. なにがいるの？
‣ Herokuアカウント
‣ Macで動くNode
‣ Homebrewとかで
‣ NPM(Node Package Manager)
‣ curl http://npmjs.org/install.sh | sh
‣ Heroku Toolbelt
‣ Heroku Clientなどがバンドル
‣ https://toolbelt.heroku.com/
‣ Gitの基礎知識
15. web.js
var express = require('express');
var app = express.createServer(express.logger());
app.get('/', function(request, response) {
response.send('Hello World!');
});
var port = process.env.PORT || 3000;
app.listen(port, function() {
console.log("Listening on " + port);
});
17. 依存関係のインストール
$ npm install
npm http GET https://registry.npmjs.org/express
npm http 200 https://registry.npmjs.org/express
npm http GET https://registry.npmjs.org/express/-/express-2.5.9.tgz
・・・
express@2.5.9 ./node_modules/express
├── qs@0.4.2
├── mime@1.2.4
├── mkdirp@0.3.0
└── connect@1.8.7 (formidable@1.0.9)
19. .gitignore
$ echo node_modules >> .gitignore
$ ls -la
total 24
drwxr-xr-x 6 hoge staff 204 5 20 10:42 .
drwxr-xr-x 11 hoge staff 374 5 20 10:16 ..
-rw-r--r-- 1 hoge staff 24 5 20 10:42 .gitignore
drwxr-xr-x 4 hoge staff 136 5 20 10:36 node_modules
-rw-r--r-- 1 hoge staff 90 5 20 10:36 package.json
-rw-r--r-- 1 hoge staff 276 5 20 10:18 web.js
38. コマンドライン引数
$ node arg.js hoge fuga
[ 'node',
'/Users/shingo/Projects/Node/local_base/arg.js',
'hoge',
'fuga' ]
---- arg.js ----
console.log(process.argv);
39. ファイルインプット ver.1
$ cat /etc/hosts | node pipe1.js
---- pipe1.js ----
process.stdin.resume();
process.stdin.setEncoding('utf8');
process.stdin.on('data', function(data) {
process.stdout.write(data);
});
40. ##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
・・・
41. ファイルアウトプット ver.1
$ cat /etc/hosts | node pipe1.js > hosts.copy
---- pipe1.js ----
process.stdin.resume();
process.stdin.setEncoding('utf8');
process.stdin.on('data', function(data) {
process.stdout.write(data);
});
42. インプットアウトプット
$ node readwrite.js
---- reaswrite.js ----
var fs = require('fs');
var r = fs.createReadStream('/etc/hosts');
var w = fs.createWriteStream('hosts2.copy');
r.on('data', function(data) {
w.write(data.toString().toUpperCase());
});
45. インプットアウトプット
var fs = require('fs');
function readLines(input, func) {
var remaining = '';
input.on('data', function(data) {
remaining += data;
var index = remaining.indexOf('n');
while (index > -1) {
var line = remaining.substring(0, index);
remaining = remaining.substring(index + 1);
func(line);
index = remaining.indexOf('n');
}
});
input.on('end', function() {
if (remaining.length > 0) {
func(remaining);
}
});
}
46. インプットアウトプット
var input = fs.createReadStream('sample1.csv');
var data = [];
readLines(input,
function(line) {
var buf = line.split("t");
data.push(buf);
},
function() {
console.log(data);
}
);
