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| var b = '{comment}'.replace((new RegExp('({comment})','g')), '$123'); | |
| console.log(b); //{comment}23 | |
| var b = '{comment}'.replace((new RegExp('{comment}','g')), '$123'); | |
| console.log(b); //$123 |
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| <ul class='thumbnails'> | |
| <li> | |
| <a class='thumbnail'> | |
| <img src='http://ww1.sinaimg.cn/mw690/a1d3feabjw1e57a6ito1gj205a02sq37.jpg' /> | |
| </a> | |
| </li> | |
| </ul> |
binnng
/ gist:5733761
Created
June 8, 2013 02:41
new Function的问题，函数体内的变量从全局环境找，new Function声明的函数所处作用域为全局。这点和eval不同。
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| var a = 1; | |
| (function () { | |
| var a = 3; | |
| (new Function('console.log(a)'))(); // 1 | |
| })(); |
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| .text{ | |
| -webkit-line-clamp: 4; | |
| -webkit-box-orient: vertical; | |
| display: -webkit-box; | |
| } |
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| this.context = [].concat.apply([], selector); | |
| //selector是个伪数组（元素列表），这样转换成数组不可靠，三星大部分机器会报错。 |
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| // 判断是否为移动端运行环境 | |
| if (/AppleWebKit.*Mobile/i.test(navigator.userAgent) || (/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD| | |
| DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia | |
| |SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))) { | |
| if (window.location.href.indexOf("?mobile") < 0) { | |
| try { | |
| if (/Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)) { |
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| <p class="title"> | |
| <b></b> | |
| <span>科鲁兹人气榜</span> | |
| </p> |
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| //开启贪婪模式 | |
| /a(.*)z/.exec('aszdfffz'); | |
| //禁止贪婪模式 | |
| a(.*?)z/.exec('aszdfffz'); |
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| /* | |
| *元素渐变显示 | |
| */ | |
| .banner_item{ | |
| display: inline-block; | |
| background-size: 100%; | |
| width: 814px; | |
| height: 316px; | |
| overflow: hidden; | |
| background-repeat: no-repeat; |
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| var arr = [1, 2, 3, 4, 5]; | |
| arr.sort(function (a, b) { | |
| return Math.random()>.5 ? -1 : 1;//用Math.random()函数生成0~1之间的随机数与0.5比较，返回-1或1 | |
| }); |