js遍歷json對象
原生js遍歷json對象
遍歷json對象：
無規律：
<11script>
var json = [
{dd:'SB',AA:'東東',re1:123},
{cccc:'dd',lk:'1qw'}
];
for(var i=0,l=json.length;i<l;i++){
for(var key in json[i]){
alert(key+':'+json[i][key]);
}
}
</script>
有規律：
1
2
3
4
5
6
7
8
9
10
11
12
13
packJson = [
{"name":"nikita", "password":"1111"},
{"name":"tony", "password":"2222"}
];
for(var p in packJson){//遍歷json數組時，這么寫p為索引，0,1
alert(packJson[p].name + " " + packJson[p].password);
}
也可以用這個：
1
2
3
4
5
for(var i = 0; i < packJson.length; i++){
alert(packJson[i].name + " " + packJson[i].password);
}
遍歷json對象
1
2
3
4
5
6
7
myJson = {"name":"caibaojian", "password":"1111"};
for(var p in myJson){//遍歷json對象的每個key/value對,p為key
alert(p + " " + myJson[p]);
}
有如下 json對象：
var obj ={"name":"馮娟","password":"123456","department":"技術部","sex":"女","old":30};
遍歷方法：
1
2
3
4
for(var p in obj){
str = str+obj[p]+',';
return str;
}