javascript js string.Format()收集

String.prototype.format = function(args) {
    var result = this;
    if (arguments.length > 0) {    
        if (arguments.length == 1 && typeof (args) == "object") {
            for (var key in args) {
                if(args[key]!=undefined){
                    var reg = new RegExp("({" + key + "})", "g");
                    result = result.replace(reg, args[key]);
                }
            }
        }
        else {
            for (var i = 0; i < arguments.length; i++) {
                if (arguments[i] != undefined) {
                    var reg = new RegExp("({[" + i + "]})", "g");
                    result = result.replace(reg, arguments[i]);
                }
            }
        }
    }
    return result;
}


//兩種調用方式
 var template1="我是{0}，今年{1}了";
 var template2="我是{name}，今年{age}了";
 var result1=template1.format("loogn",22);
 var result2=template2.format({name:"loogn",age:22});
 //兩個結果都是"我是loogn，今年22了"

function stringFormat() {
         if (arguments.length == 0)
             return null;
         var str = arguments[0];
         for (var i = 1; i < arguments.length; i++) {
             var re = new RegExp('\\{' + (i - 1) + '\\}', 'gm');
             str = str.replace(re, arguments[i]);
         }
         return str;
     } 
 
 StringFormat("&Type={0}&Ro={1}&lPlan={2}&Plan={3}&={4}&Id={5}&Id={6}", data1, data2, data3,data4, data5,data6,data7);

String.format = function(str) {
var args = arguments, re = new RegExp(”%([1-" + args.length + "])”, “g”);
return String(str).replace(
re,
function($1, $2) {
return args[$2];
}
);
};
調用方法很簡單：
element.innerHTML = String.format(’<a href=”%1″ onclick=”alert(\’%2\’);”>%3</a>’, url, msg, text);