Question

JS代码，报错提示push()未定义

想把json数据从本地读取后，存入数组。但是push()总报错：Uncaught TypeError: Cannot read property 'push' of undefined
代码如下

var buildVOList = function(data) {
//深拷贝
//var voList = util.getCache('voList');
var voList = [];
for (var i = 0, l = data.length; i < l; i++) {
var el = data[i];

var obj = new WifiVO({
stime: el.stime,
macadd: el.macadd,
vendor: el.vendor,
VlanID: el.VlanID,
protocolName: el.protocolName,
sessionTime: el.sessionTime,
Avg: el.Avg,
Bytesent: el.Bytesent,
ByteReceived: el.ByteReceived,
RSSI: el.RSSI,
building: el.building,
room: el.room
});
//console.log(obj);
voList.push(obj);

}
return voList;
}
function initApp(){

initDataTree();
}

function initDataTree(callback) {
//传入数据
$.getJSON('data/test.json', function(data) {
//console.log(data);
buildVOList(data);
callback && callback();
});
}

initApp();

json的数据是这样：
[{"associationTime":1488786392000,"clientMacAdd":"84:11:9e:5c:46:4f","vendor":"Unknown","vlanID":825,"protocol":"802.11n(2.4GHz)","sessionDuration":"5min 5sec","avgThroughput":"14.3","byteSent":160259,"byteReceived":387198,"RSSI":-44,"building":"5","room":"302"},

Answer 1

var buildVOList = function(data) {
//深拷贝
//var voList = util.getCache('voList');
var voList = [];
for (var i = 0, l = data.length; i < l; i++) {
var el = data[i];

var obj = new WifiVO({
stime: el.stime,
macadd: el.macadd,
vendor: el.vendor,
VlanID: el.VlanID,
protocolName: el.protocolName,
sessionTime: el.sessionTime,
Avg: el.Avg,
Bytesent: el.Bytesent,
ByteReceived: el.ByteReceived,
RSSI: el.RSSI,
building: el.building,
room: el.room
});
//console.log(obj);
voList.push(obj);

}
return voList;
}
function initApp(){

initDataTree();
}

function initDataTree(callback) {
//传入数据
$.getJSON('data/test.json', function(data) {
//console.log(data);
buildVOList(data);
callback && callback();
});
}
links 是节点数组中的索引，应该从0开始。从1开始，因此最高的数字' t存在，并给你这个错误。

追问

那这个应该怎么修改呢？