从checkSessionCount调用loadLevel1Categories,然后对所有.alvl1类执行某些操作。据我所见,我知道数据正在被返回。似乎延迟器不起作用。
我通过在loadLevel1Categories((之后放置setTimeout进行了测试;一切都是这样,但这很混乱,而且会返回不同数量的数据,因此无法预测要添加多少延迟。
$(function(){
var objCats = $('#portal_categories');
function loadLevel1Categories() {
objCats.empty();
var dfd = $.Deferred();
$.getJSON('getdata.php?ty=ca1&ts='+new Date(),function(){
//success
}).done(function(data){
var r = new Array, j = -1;
$.each(data,function(k,item) {
r[++j] = '<a href="#" class="alvl1" data-id="'+item.id+'">'+item.title+'</a>';
});
objCats.html(r.join(''));
dfd.resolve();
}).fail(function(){
objCats.html('Unable to locate any data');
});
return dfd.promise();
}
function checkSessionCount() {
$('#debug').empty();
loadLevel1Categories();
//do something with the .alvl1 elements once data is returned
//but this bit isn't working as the database hasn't been returned yet
}
//on page load
checkSessionCount();
});
您可以在上使用.then回调
loadLevel1Categories().then(()=>{
//do something with the .alvl1 elements once data is returned
})