静态加载脚本并在加载时运行

Question

I am placing a script as the following:

<script src="https://cdn.jsdelivr.net/blabla.js" type="text/javascript" id="the_script"></script>

In jquery I can:

$("#the_script").ready(function(){
    alert("loaded")
});

But I am not using JQuery. What is the equivalent in vanilla js (native).

here is an example in jsfiddle http://jsfiddle.net/bmhm65vm/

Answer 1

Running a script as soon as a browser loads (meaning before anything else)
requires you to put the code you want to execute first into the following function:

window.onload = function(){
    //Your Code Here.
};

The block of code inside of the window.onload function will be run FIRST.

Answer 2

You can always use onload like in this fiddle http://jsfiddle.net/est4dsav/

Here you have all the native options: http://www.w3schools.com/jsref/event_onload.asp