1 String.prototype.format =
function (args) {
2 var result =
this;
3 if (arguments.length > 0
) {
4 var reg;
5 if (arguments.length == 1 &&
typeof (args) == "object"
) {
6 for (
var key
in args) {
7 if (args[key] !=
undefined) {
8 reg =
new RegExp("({" + key + "})", "g"
);
9 result =
result.replace(reg, args[key]);
10 }
11 }
12 }
13 else {
14 for (
var i = 0; i < arguments.length; i++
) {
15 if (arguments[i] !=
undefined) {
16 reg =
new RegExp("({)" + i + "(})", "g"
);
17 result =
result.replace(reg, arguments[i]);
18 }
19 }
20 }
21 }
22 return result;
23 }
24
25 window.onload =
function() {
26 var template1 = "我是{0}，今年{1}了"
;
27 var template2 = "我是{name}，今年{age}了"
;
28 var result1 = template1.format("loogn", 22
);
29 var result2 = template2.format({ name: "loogn", age: 22
});
30 };
来源:http://www.cnblogs.com/loogn/archive/2011/06/20/2085165.html
转载于:https://www.cnblogs.com/ICE_Inspire/p/string_Format.html
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