javascript 字符串常用操作(replaceAll,trim)
//全局文本替换 String.prototype.replaceAll = function(s1,s2){ return this.replace(new RegExp(s1,"gm"),s2); } //去前后空格 String.prototype.Trim = function(){ return this.replace(/(^\s*)|(\s*$)/g, ""); } //去前空格 String.prototype.LTrim = function(){ return this.replace(/(^\s*)/g, ""); } //去后空格 String.prototype.RTrim = function(){ return this.replace(/(\s*$)/g, ""); } //去除字符串中所有空格 String.prototype.trimStr = function(){ return this.replace(/\s+/g, ""); }