复制代码 代码如下:
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】相关文章：
★ 浅谈JavaScript中的Math.atan()方法的使用
★ 简介JavaScript中的getUTCFullYear()方法的使用
★ JavaScript中Number.MAX_VALUE属性的使用方法
★ JavaScript中的Math.sin()方法使用详解
★ JavaScript中getUTCMinutes()方法的使用详解