Javascript jquery可拖动覆盖函数

我只想在4-5秒后调用OVER函数块 如果我按住拖动的项目几秒钟，则需要调用OVER功能块，否则不调用

$('.treeLink').droppable({
    tolerance: 'pointer',
    accept: '.childLinks',
    over: function() {},
    over: function() {
        getTreeLinks($(this).attr('id').split("treeLink")[1]);
    },
    drop: function() {
        updateGovLinks($(this).attr('id'));
    }
});

---

您可能需要使用某种类型的超时：

var timeout;
$('.treeLink').droppable({
    tolerance: 'pointer',
    accept: '.childLinks',
    over: function() {
        var self = this;
        timeout = setTimeout(function () {
             getTreeLinks($(self).attr('id').split("treeLink")[1])
        }, 4000);
    },
    out: function () {
        clearTimeout(timeout);
    },
    drop: function() {
        updateGovLinks($(this).attr('id'));
    }
});

---

您可能需要使用某种类型的超时：

var timeout;
$('.treeLink').droppable({
    tolerance: 'pointer',
    accept: '.childLinks',
    over: function() {
        var self = this;
        timeout = setTimeout(function () {
             getTreeLinks($(self).attr('id').split("treeLink")[1])
        }, 4000);
    },
    out: function () {
        clearTimeout(timeout);
    },
    drop: function() {
        updateGovLinks($(this).attr('id'));
    }
});