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# var xs = [1,2,3]
# doubleMe(doubleMe(doubleMe(xs)))
#這樣寫法有很多缺點，太多層次要把全部層次讀完才能知道最後結果。

#在墮性語言之中
#我們要做到調用 doubleMe 時並不會立即求值，它會說“嗯嗯，待會兒再做！”
#在真正執行時只會是一個平面，像 xs *2 *2 *2;

(a, b, c) --> a * b * c
#代替了

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/*
In the node.js intro tutorial (http://nodejs.org/), they show a basic tcp 
server, but for some reason omit a client connecting to it.  I added an 
example at the bottom.

Save the following server in example.js:
*/

var net = require('net');

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uploader = $fileUploader.create(
    scope: $scope                      
    url: "http://#{$rootScope.api}/proposal/upload"
    formData: [{
      key: \value
    }]
    filters: [ 
      (item) ->  
        if item.size >10000000
          alert \size不得超過10mb

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/**
 * A generic confirmation for risky actions.
 * Usage: Add attributes: ng-really-message="Are you sure"? ng-really-click="takeAction()" function
 */
angular.module('app').directive('ngReallyClick', [function() {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {
            element.bind('click', function() {
                var message = attrs.ngReallyMessage;

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Deploying a subfolder to GitHub Pages

Sometimes you want to have a subdirectory on the master branch be the root directory of a repository’s gh-pages branch. This is useful for things like sites developed with Yeoman, or if you have a Jekyll site contained in the master branch alongside the rest of your code.

For the sake of this example, let’s pretend the subfolder containing your site is named dist.

Step 1

Remove the dist directory from the project’s .gitignore file (it’s ignored by default by Yeoman).

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// Class "MyException"
class MyException: public exception
{
...
};

// Class "A"
class A
{
public:

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/**
	Handle multiple socket connections with select and fd_set on Linux
	
	Silver Moon ( m00n.silv3r@gmail.com)
*/
 
#include <stdio.h>
#include <string.h>   //strlen
#include <stdlib.h>
#include <errno.h>

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function invoke_and_add(a,b){  
  return a()+b();  
}  
  
function one(){  
  return 1;  
}  
  
function two(){  
  return 2;  

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#!/usr/bin/ruby
require 'rss'

p 'Downloading rss index'

rss_string = open('http://feeds.feedburner.com/railscasts').read
rss = RSS::Parser.parse(rss_string, false)
videos_urls = rss.items.map { |it| it.enclosure.url }.reverse

videos_filenames = videos_urls.map {|url| url.split('/').last }

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漂漂終端機懶人包

Mac iTerm2

[Mac] vi ~/.bash_profile 加入以下幾行

# Change prompt
PS1_OLD=${PS1}
export PS1="[\[\033[0;32m\]\w\[\033[0m\]] $ "
#enables color in the terminal bash shell