网上有很多了,这里给出一个,其实思路就是A={}; A.b={};其实b是A的一个属性。只是做了一些封装,最后的效果是可以直接定义多个namespace:
1: My.namespace("Company", "Company.Feed", "Company.Feed.Messaging");
具体的实现方法,用到了arguments, eval等JavaScript函数:
1: //namespace的实现
2: var MyFramework = {};
3:
4: MyFramework.namespace=function(){
5: var a=arguments, o=null, i, j, d, rt;
6: for (i=0; i<a.length; ++i) {
7: d=a[i].split(".");
8: rt = d[0];
9: eval("if (typeof (" + rt + ") == 'undefined'){" + rt + "= {};} o = "+ rt + ";");
10: for (j=1; j<d.length; ++j) {
11: o[d[j]]=o[d[j]] || {};
12: o=o[d[j]];
13: }
14: }
15: };
使用方法:
1: MyFramework.namespace("MyCompany.feed", "IBM.common"); //直接定义多个namespace
2:
3: MyCompany.feed =
4: {
5: alert: function (msg) {
6: alert(msg);
7: },
8:
9: load: function () {
10: }
11:
12: };
13:
14: MyCompany.feed.test = function (t){
15: alert("MyCompany.feed.test : "+t);
16: };
17:
18: IBM.common.messging = function (t){
19: alert("IBM.common.messging: "+t);
20: };
21:
22: MyCompany.feed.test("def");
23: MyCompany.feed.alert("abc");
24: IBM.common.messging("fff");