jQuery document ready function

0 votes

Are the end results of the following jQuery snippets identical?

Snippet 1:

$(function() { alert('test!'); });

Snippet 2:

$(document).ready(function() { alert('test!'); });

In other words, is $(function(){}) just shorthand for $(document).ready(function() { });?

The reason I'm asking is because we're seeing some strange issues with a small application we've built using jQuery and jQuery UI. Occasionally, when performing a form submit action by clicking a button the browser window will just freeze. We can still use the underlying browser window (the one that launches the pop-up) until we perform some actions there. The users can only continue by force closing the browser (Internet Explorer, obviously). We suspect this is related to the Acrobat PDF plug-in, but I'm just checking all the angles here, because I found this issue which seems to exhibit similar behaviour.

Jun 2 in JQuery by Edureka
• 13,640 points
33 views

1 answer to this question.

0 votes

$( document ).ready()

A page can't be manipulated safely until the document is "ready." jQuery detects this state of readiness for you. Code included inside $( document ).ready() will only run once the page Document Object Model (DOM) is ready for JavaScript code to execute. Code included inside $( window ).on( "load", function() { ... }) will run once the entire page (images or iframes), not just the DOM, is ready.

1

2

3

4

// A $( document ).ready() block.

$( document ).ready(function() {

console.log( "ready!" );

});

answered Jun 2 by Edureka
• 13,640 points

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