js 數組，字串，JSON，bind, Name

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/** * Created by W.J.Chang on 2014/5/23. */// 判讀是否是數組的方法console.log(Array.isArray(new Array));console.log(Array.isArray([]));var arr = [1,2,3];// 遍曆方法arr.forEach(function (v){   console.log(v);});console.log("---------------------");// 過濾但不改變原數組arr.filter(function (v){    return v < 3;}).forEach(function(v) {console.log(v);});arr.forEach(function (v) {    console.log(v);});console.log("---------------------");// 修改但不改變原數組arr.map(function (v){    return v * 3;}).forEach(function(v) {console.log(v);});arr.forEach(function (v) {    console.log(v);});console.log("---------------------");[1,2,3].map(function(v){return v*2}).forEach(function(v) {console.log(v);});//字串console.log("   hello    ".trim());// JSON 處理var obj = JSON.parse('{"a":"b","c":"d"}');console.log(obj.a);console.log(JSON.stringify(obj));// bind 改變this的引用function a(){    this.hello == "world";}var b = a.bind({hello:'world'});// name 函數名var aa = function woot(){};console.log(aa.name);