jquery随手记

var a={"name":"tom","sex":"男","age":"24"}; 

var b='{"name":"Mike","sex":"女","age":"29"}'; 

var aToStr=JSON.stringify(a); 

var bToObj=JSON.parse(b); 

alert(aToStr); //string

alert(

);//object

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js获取对象里所有的key和key值。

var obj = {

     A:2
    ,B:"Ray"
    ,C:true
    ,D:function(){}

}

for(var key in obj){
    console.log(key,obj[key])

}

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解决在移动端上alert 弹出域名的问题

<script type="text/javascript"> //在alert之前加入这段代码即可

    window.alert = function(name){

    var iframe = document.createElement("IFRAME");

    iframe.style.display="none";

    iframe.setAttribute("src", 'data:text/plain,');

    document.documentElement.appendChild(iframe);

    window.frames[0].window.alert(name);

    iframe.parentNode.removeChild(iframe);

}

alert(111); //亲测有效

</script>

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