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[
    '{{repeat(5, 7)}}',
    {
        id: '{{index}}',
        guid: '{{guid}}',
        isActive: '{{bool}}',
        balance: '{{numeric(1000,4000,%=$0,0.00)}}',
        picture: 'http://placehold.it/32x32',
        age: '{{numeric(20,40)}}',
        name: '{{firstName}} {{surname}}',

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for (var i = 0; a < 3; i++) {
  setTimeout(function() {
    console.log(a);
  },  0);
};

// 控制台中的输出结果是什么？

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// ==ClosureCompiler==
// @compilation_level SIMPLE_OPTIMIZATIONS
// ==/ClosureCompiler==

function xx() {
function hello(name) {
  alert('Hello, ' + name);
}
eval('(hello("New user"))')

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// oldj：设 A = $("#id a")，B = $("#id .c a")，求 A - B。要求：
//  1、不能用 jQuery 等框架；
//  2、兼容 IE6 在内的各大浏览器；
//  3、尽可能高效；
//  4、尽可能简短。

function getWanted() {

  var root = document.getElementById('id')
  var all = root.getElementsByTagName('*')

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朴灵的 EventProxy, README 里有个例子：

var proxy = new EventProxy();
var render = function (template, data, l10n){
    _.template(template, data);
};
proxy.assign("template", "data", "l10n", render);
$.get("template", function (template) {
 // something

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<script>
;(function(d, s, c, n, h) {
    c = d.getElementsByTagName(s);
    c = c[c.length - 1]; c.id = "t-a-{pid}";
    n = d.createElement(s);
    n.async = 1;
    n.src = 'http://{host}/{path}?i={pid}';
    h = d.getElementsByTagName('head')[0];
    if(h) h.insertBefore(n, h.firstChild);
})(document, 'script');

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/**
 * modified from http://gist.github.com/527683
 * only improve slightly to get small
 */
var ie = function(v, p, needle, undef) {

    needle = p.getElementsByTagName('br');

    while(
        p.innerHTML = '<!--[if gt IE ' + (++v) + ']><br><![endif]-->',