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js遍历、动态的添加数据的小例子_javascript技巧

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Release: 2016-05-16 17:31:39
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复制代码 代码如下:

function jsonObj(){
    var person= {name: 'zhangsan',pass: '123' ,'sni.ni' : 'XMQ',back:function (){
        for(var i=0;i        //在不知参数个数情况下可通过for循环遍历
        // arguments这个是js 默认提供
        alert("arr["+i+"]="+arguments[i]);
        }
        }
        };
    //遍历属性
    for(var item in person){
        if(typeof person[item] === 'string'){
            alert("person中"+item+"的值="+person[item]);
            }else if(typeof person[item] === 'function'){
                person[item](1,1);
                //js 的function的参数可以动态的改变
                }
                }
    //添加属性
    person.isMe = 'kaobian'; 
    // 这种是属性名字正常的
    //当属性名字不正常时,像下面这种,必须用这种形式的,
    person['isMe.kaobian'] = 'hello kaobian'; 
    //上面的也可以用下面的形式
    for(var item in person){
        if(typeof person[item] === 'string'){
            alert("person中"+item+"的值="+person[item]);
            }else if(typeof person[item] === 'function'){
                person[item](1,1);
                }
                }

}
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