复制代码代码如下:var cookieName = "cookie名字";var cookieValue = null;//返回cookie的value值if (document.cookie && document.cookie != '') {var cookies = document.cookie.split(';');//将获得的所有cookie切割成数组for (var i = 0; i var cookie = cookies[i];//得到某下标的cookies数组if (cookie.substring(0, cookieName.length + 2).trim() == cookieName.trim() + "=") {//如果存在该cookie的话就将cookie的值拿出来cookieValue = cookie.substring(cookieName.length + 2, cookie.length);break}}}if (cookieValue != "" && cookieValue != null) {//如果存在指定的cookie值alert(cookieValue);} else {//如果cookie的值是空alert("not cookie!!!");}复制代码代码如下://去除空格String.prototype.trim = function () {return this.replace(new RegExp("(^[\s]*)|([\s]*$)", "g"), "");}
js获取指定的cookie的具体实现_javascript技巧
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