Detailed explanation of jQuery validata plug-in example
本文主要为大家带来一篇jQuery validata插件实现方法。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧,希望能帮助到大家。
首先我写jquery插件,喜欢这么写(好处有很多,以后在讲,哈哈,看过jQuery源码应该知道):
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在这里写逻辑
一:默认的参数 var __dEFAULTS__,
二:规则(可根据业务需求自己配置) var __RULES__,
三:原型 var __PROTOTYPE__,
_init: 初始化DOM结构,没什么将的,
_attachEvent: 自定义的事件的机制(其实就是用了jquery的trigger)
_bind: 首先是事件功能的绑定,为每一个input都绑定事件,each循环__RULES__(就是规则),找到所以自定义data的值(也就是每一个input中所需要的规则校验),用if来判断,当前的input中配置了几个data属性,并且通过 rule.call(_$field)(这句话的意思就是调用rule函数的时候,rule函数里的this引用变成了_$field),把input中的rule规则判断一下。如果为false,那么就在input的父元素下面添加一个p标签,那么怎么让p标签中的内容让用户来配置呢?
,这其中的意思是如果错了,那么就不往下检索rule了,直接return result(因为rule返回为false,所以这里的result也为false),来阻止。并且添加p标签,并且根据result的值来判断input的父元素,来个父元素加上一个success或error。最后还有submit方法:这个方法是用来通过input父元素的class中有没有error,来判断触发哪一个自定义事件四:$.fn[plug]
一:首先判断当前元素是否是from标签,不是的话,throw一个错误
二:$.extend(this,__dEFAULTS__,options,__PROTOTYPE__); (....貌似有同学面试死在这个上面了,有空讲一下吧)
三:this._init(); this._bind(); return this;
五:根据业务需求,用户自定义添加rule:就是如下添加一个方法,就可以了,(下次有时间还是讲一下extend吧)
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六:ajax
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JS:
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HTML:
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css:
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jquery.validata.js 插件集合,想要的都在这里
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