如何调用一个jquery单击按钮前的JS功能（通过选择点击） [英] How to call a JS function before a jquery button click(click through selector)

问题描述

我要调用一个JS函数单击按钮时，然后继续下面的的jQuery 脚本的执行

I want to call a JS function when a button is clicked and then continue execution of below jquery script

形式：

<form id="my_form">
  <button type="button" id="Bshift" onclick="validation()">Clear</button>
</form>

纯JS功能：

function validation(){
    // this has to be executed  first
    // do something here..
}

jQuery的：

$(document).ready(function(){
    $('#Bshift').submit(function(){
    // this has to be executed  second
    // do something here.
    }
});

我想知道的是我如何执行我的功能我的jQuery之前提交

I would like to know is how I execute my function before my jquery submit.

推荐答案

HTML

  <form id="my_form">
    <button type="button" id="Bshift">Clear</button>
  </form>

JS：

$(document).ready(function(){
   $('#Bshift').on('click', function(){ // I think this should be click event because you're not submitting your page you're just clearing it based on "CLEAR"
     validation();
   }

   function validation(){
    do something here..
   }
 }

注意：您的函数必须是事件触发外

Note: Your function must be outside the event triggers.

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