Posted in Javascript onJuly 08, 2013
String.prototype.EndWith = function (str) { if (str == null || str == "" || this.length == 0 || str.length > this.length) return false; if (this.substring(this.length - str.length) == str) return true; else return false; return true; } String.prototype.StartWith = function (str) { if (str == null || str == "" || this.length == 0 || str.length > this.length) return false; if (this.substr(0, str.length) == str) return true; else return false; return true; } String.prototype.Trim = function () { return this.replace(/(^\s*)|(\s*$)/g, ""); } String.prototype.ltrim = function () { return this.replace(/(^\s*)/g, ""); } String.prototype.rtrim = function () { return this.replace(/(\s*$)/g, ""); } String.format = function (str) { var i = 1, args = arguments; var str = args[0]; var re = /\{(\d+)\}/g; return str.replace(re, function () { return args[i++] }); }; var Json2string = function (obj) { var t = typeof (obj); if (t != "object" || obj === null) { // simple data type if (t == "string") obj = "'" + obj + "'"; return String(obj); } else { // recurse array or object var n, v, json = [], arr = (obj && obj.constructor == Array); for (n in obj) { v = obj[n]; t = typeof (v); if (t == "string") v = "'" + v + "'"; else if (t == "object" && v !== null) v = Json2string(v); json.push((arr ? "" : "'" + n + "':") + String(v)); } return (arr ? "[" : "{") + String(json) + (arr ? "]" : "}"); } };
Javascript拓展String方法小结
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