JS traverse JSON object
JS traverse JSON object
<script>
var obj = {
"goodsid": "01001",
"goodsname": "铅笔",
"goodsprice": "1.5"
};
</script>
JS traversal method
for (var key in obj) {
document.write(obj[key]+"<br>");
}
Jquery traversal method
$.each(obj, function (index, value) {
alert(value);
});
</script>
JS traverse JSON array
JSON array
var jsonArr = [
{
"goodsid": "01001",
"goodsname": "铅笔",
"goodsprice": "1.5"
},
{
"goodsid": "01002",
"goodsname": "钢笔",
"goodsprice": "25"
},
{
"goodsid": "01003",
"goodsname": "毛笔",
"goodsprice": "15"
}
];
JS traversal method
for (var i = 0, l = jsonArr.length; i < l; i++) {
for (var key in jsonArr[i]) {
document.write(key + ':' + jsonArr[i][key]+"<br>");
}
}
JQ traversal method
$.each(jsonArr,function(index,value){
alert(value.year);
});
Traverse JSON object string
1JSON string
var str = {
"goodsid": "01001",
"goodsname": "铅笔",
"goodsprice": "1.5"
};
Traversal method: first convert the string to a JSON object
var obj = JSON.parse (str);
Then traverse it by traversing the JSON object, the same way as before, no longer expressed.
Traverse JSON array string
JSON array string
var jsonArrStr= [
{
"goodsid": "01001",
"goodsname": "铅笔",
"goodsprice": "1.5"
},
{
"goodsid": "01002",
"goodsname": "钢笔",
"goodsprice": "25"
},
{
"goodsid": "01003",
"goodsname": "毛笔",
"goodsprice": "15"
}
];
Traversal method: first convert the string to a JSON array
var jsonArr = $ .parseJSON (jsonArrStr);
Then traverse it by traversing the JSON array, the same way as before, no longer expressed.