我是JavaScript新手，我编写了一个每5秒刷新一次网络时代节点的函数。我加载了一个大小为68字节的json文件，并解析了html更改数据。
大约20秒后，年龄冻结并放慢了浏览器的速度，同样也没有发生班级变化。
我不知道我是否有内存泄漏，或者我应该让服务器发送数据。
setInterval(function() {
$.getJSON("/Assets/inplay.json", function(data){
var j_data = JSON.parse(data);
var Curr = [];
$.each(j_data, function(key, value){
Curr.push(value._id.$oid);
chk = document.getElementById('HT-'+value._id.$oid);
if (chk == null){
$('#in-play').append(addRow(value));
} else {
var prefixes = ['GT-', 'HG-', 'HDA-', 'HA-', 'HP-', 'HOT-', 'HOffT-', 'HPI-', 'Fav-', 'AG-', 'ADA-', 'AA-', 'AP-', 'AOT-', 'AOffT-', 'API-', 'HMO-', '025-', '035-', '045-', 'AMO-', 'U25-', 'U35-', 'U45-', 'DMO-'];
var values = [value.Stats[0].gt, value.Stats[0].hg, chkVal(value.Stats[0],'Dangerous_Attacks', 0), chkVal(value.Stats[0], 'Attacks', 0), chkVal(value.Stats[0], 'Possession', 0), chkVal(value.Stats[0], 'On_Target', 0), chkVal(value.Stats[0], 'Off_Target', 0), chkVal2(value.HomePI, 'PI'), chkVal3(value.Fav), value.Stats[0].ag, chkVal(value.Stats[0], 'Dangerous_Attacks', 1), chkVal(value.Stats[0], 'Attacks', 1), chkVal(value.Stats[0], 'Possession', 1), chkVal(value.Stats[0], 'On_Target', 1), chkVal(value.Stats[0], 'Off_Target', 1), chkVal2(value.AwayPI, 'PI'), marketsFunc(value, "MATCH_ODDS", 0), marketsFunc(value, "OVER_UNDER_25", 1), marketsFunc(value, "OVER_UNDER_35", 1), marketsFunc(value, "OVER_UNDER_45", 1), marketsFunc(value, "MATCH_ODDS", 1), marketsFunc(value, "OVER_UNDER_25", 0), marketsFunc(value, "OVER_UNDER_35", 0), marketsFunc(value, "OVER_UNDER_45", 0), marketsFunc(value, "MATCH_ODDS", 2)];
for (var i = 0, len = prefixes.length; i < len; i++) {
if (values[i] != null && document.getElementById(prefixes[i]+value._id.$oid) != null) {
//console.log(prefixes[i]+value._id.$oid);
//console.log(values[i]);
if (prefixes[i] == 'GT-' && value.Tactics != null){
if(value.Tactics.indexOf("HT-LTD") != -1 && values[i] == '45:00') {
class_n = document.getElementById('HT-'+value._id.$oid).classList;
class_n.add('HT-LTD');
class_n = document.getElementById('AT-'+value._id.$oid).classList;
class_n.add('HT-LTD');
} else if (classArr.indexOf("HT-LTD") != -1 && values[i] != '45:00') {
class_n = document.getElementById('HT-'+value._id.$oid).classList;
class_n.remove('HT-LTD');
class_n = document.getElementById('AT-'+value._id.$oid).classList;
class_n.remove('HT-LTD');
}
}
if (prefixes[i] == 'HPI-' && values[i] > 6) {
class_n = document.getElementById('HT-'+value._id.$oid).classList;
class_n.add('HI-PRESSURE');
}
if (prefixes[i] == 'API-' && values[i] > 6) {
//console.log('bob');
class_n = document.getElementById('AT-'+value._id.$oid).classList;
class_n.add('HI-PRESSURE');
}
if (prefixes[i] == 'HG-' && values[i] != document.getElementById(prefixes[i]+value._id.$oid).innerHTML) {
document.getElementById('HG-'+value._id.$oid).className = 'GOAL';
}
if (prefixes[i] == 'AG-' && values[i] != document.getElementById(prefixes[i]+value._id.$oid).innerHTML) {
document.getElementById('AG-'+value._id.$oid).className = 'GOAL';
}
if (prefixes[i] == 'HG-' && document.getElementById('HG-'+value._id.$oid).className == 'GOAL') {
document.getElementById('HG-'+value._id.$oid).className = 'OLD-GOAL';
}
if (prefixes[i] == 'AG-' && document.getElementById('AG-'+value._id.$oid).className == 'GOAL') {
document.getElementById('AG-'+value._id.$oid).className = 'OLD-GOAL';
}
if (prefixes[i] == 'HG-' && document.getElementById('HG-'+value._id.$oid).className == 'OLD-GOAL') {
document.getElementById('HG-'+value._id.$oid).className = '';
}
if (prefixes[i] == 'AG-' && document.getElementById('AG-'+value._id.$oid).className == 'OLD-GOAL') {
document.getElementById('AG-'+value._id.$oid).className = '';
}
if (prefixes[i] == 'HPI-' && values[i] < 7) {
class_n = document.getElementById('HT-'+value._id.$oid).classList;
class_n.remove('HI-PRESSURE');
}
if (prefixes[i] == 'API-' && values[i] , 7) {
class_n = document.getElementById('AT-'+value._id.$oid).classList;
class_n.remove('HI-PRESSURE');
}
//console.log('ya');
document.getElementById(prefixes[i]+value._id.$oid).innerHTML = values[i];
}
}
}
});
var myGames = [];
var cl = '';
var n = [];
var table = document.getElementById("in-play");
for (var i = 0, row; row = table.rows[i]; i++) {
//iterate through rows
//rows would be accessed using the "row" variable assigned in the for loop
if (row.className == 'even') {
n = row.id.split('-');
cl = n[n.length - 1];
myGames.push(cl);
//console.log(cl);
}
}
//console.log(myGames);
for(var i = 0; i < myGames.length; i++) {
if (Curr.indexOf(myGames[i]) === -1 && myGames[i] != ""){
//console.log(myGames[i]);
var row = document.getElementById('HT-'+myGames[i]);
if (row != null) {
row.parentNode.removeChild(row);
}
row = document.getElementById('AT-'+myGames[i]);
if (row != null) {
row.parentNode.removeChild(row);
}
var tr = document.getElementsByClassName('market-'+myGames[i]);
var table = document.getElementById('in-play');
for(var i = tr.length - 1; i >= 0; i--){
table.deleteRow(tr[i].rowIndex);
}
tr = document.getElementsByClassName('form-'+myGames[i]);
table = document.getElementById('in-play');
for(var i = tr.length - 1; i >= 0; i--){
table.deleteRow(tr[i].rowIndex);
}
}
}
});
}, 5000);
感谢您的时间。