jQuery Live与On [英] JQuery Live vs On

问题描述

我有以下与Live一起正常工作的代码

i have the below code which was working fine with Live

 $('.numbersonly').live('keydown', function (e) {
    var key = e.charCode || e.keyCode || 0;
    return (key == 8 || key == 9 || key == 46 || (key >= 37 && key <= 40) ||
           (key >= 48 && key <= 57) || (key >= 96 && key <= 105));
});

然后我更改为开"

 $('.numbersonly').on('keydown', function (e) {
    var key = e.charCode || e.keyCode || 0;
    return (key == 8 || key == 9 || key == 46 || (key >= 37 && key <= 40) ||
           (key >= 48 && key <= 57) || (key >= 96 && key <= 105));
});

但是在min.js文件中出现脚本错误.我想念什么吗?

But am getting script error in min.js file . Am i missing something?

推荐答案

将事件委托给.numbersonly或document的父对象

Delegate event to parent of .numbersonly or document otherwise

$(document).on('keydown', '.numbersonly', function (e) {
    var key = e.charCode || e.keyCode || 0;
    return (key == 8 || key == 9 || key == 46 || (key >= 37 && key <= 40) ||
       (key >= 48 && key <= 57) || (key >= 96 && key <= 105));
});

这篇关于jQuery Live与On的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！