仅在鼠标悬停超过1秒时才执行功能 [英] Only execute function if mouse has hovered for more than 1 second

问题描述

例如，当用户将鼠标悬停在元素上时，我想在元素上添加和删除类，但是仅当其光标停留在元素上超过1秒钟时才可以.我该如何实现?

I would like to add and remove classes on elements when a user hovers over an element, but only if their cursor has been on it for more than 1 second for example. How can I achieve this?

$("#thumbs div").mouseenter(function() {
    $('#thumbs div').removeClass('hovered');
    $(this).addClass('hovered');
});

推荐答案

使用计时器:

var timer;
$("#thumbs div").mouseenter(function() {
    var that = this;
    timer = setTimeout(function(){
        $('#thumbs div').removeClass('hovered');
        $(that).addClass('hovered');
    }, 1000);
}).mouseleave(function() {
    clearTimeout(timer);
});

http://jsfiddle.net/qGRcH/

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