JavaScript implements a method that executes a specified function when a Web page is loaded _javascript tips

This article describes the JavaScript implementation method that executes the specified function when the Web page is loaded. Share to everyone for your reference. The specific analysis is as follows:

The following JS code demonstrates how to call a specified function when a Web page is loaded, and you can add multiple functions dynamically at the same time through the second segment of code.

All we need to do is assign a function to Window.onload to perform the Mycoolinitfunc function automatically when the page load completes

<script type= "Text/javascript" >
  window.onload = Mycoolinitfunc
</script>

If you want to execute more than one function in parallel after the page is loaded, you can implement it by using the following JS code

function Addloadevent (func) {
  var oldonload = window.onload;
  if (typeof window.onload!= ' function ') {
    window.onload = func;
  }
  else {
    window.onload = function () {
      oldonload ();
      Func ();}}

I hope this article will help you with your JavaScript programming.