YHson的专栏

 1、json对象的遍历var json2={"name":"txt1","name2":"txt2"};for(var js2 in json2){alert( js2+"="+json2[js2]);}2、获取json对象的长度var jslength=0;for(var js2 in json2){jslength++;}把这段代码写成一个方法，以后调用就行了：func...

转载+总结1、json对象的遍历var json2={"name":"txt1","name2":"txt2"};for(var js2 in json2){alert( js2+"="+json2[js2]);}2、获取json对象的长度var jslength=0;for(var js2 in json2){jslength++;}

一、数组转字符串需要将数组元素用某个字符连接成字符串，示例代码如下：?123vara, b;a = newArray(0,1,2,3,4);b = a.join("-");二、字符串转数组实现方法为将字符串按某个字符切割成若