[英]storing json element into javascript array
我使用ajax用php檢索數據庫數據並將其轉換為json
<?php
echo json_encode($data);
?>
Ajax功能
ajaxCall("getdata.php", container, function (data) {
var count = data.length
var i;
var array[];
for (i = 0; i < count; i++) {
container.innerHTML += data[i].property; //this is doing well
array[i] = data[i].property; //this when goes wrong;
}
});
當我嘗試重新array[i]
返回undefined時,我該怎么辦?
JavaScript中的數組初始化應類似於var array = [];
ajaxCall("getdata.php", container, function (data) {
var count = data.length
var i;
var array = [];
for (i = 0; i < count; i++) {
container.innerHTML += data[i].property; //this is doing well
array[i] = data[i].property; //this when goes wrong;
}
});
或者您可以使用for...in
循環進行迭代,並通過push()
向數組添加值
ajaxCall("getdata.php", container, function (data) {
var array = [];
for (var v in data) {
container.innerHTML += v.property; //this is doing well
array.push(v.property); //this when goes wrong;
}
});
使用JSON.parse。
演示:
var json = '[{"result":"OK","count":1}, {"result":"NOK","count":2}]',
obj = JSON.parse(json);
alert(obj[0].result);
alert(obj[1].result);
alert(obj[0].count);
alert(obj[1].count);
因此,在您的情況下,它可能看起來像這樣:
ajaxCall("getdata.php", container, function (data) {
array = JSON.parse(data);
});
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