What is $ (document).ready () function in jQuery? $ (document).ready () is an event in jQuery that is fired only when the whole DOM is fully loaded and ready to be manipulated by jQuery. This document.ready event is to prevent any jQuery code from running before the document is finished loading (is ready).
Does a Dom ready function have to call before Dom is ready?
The function inside of the .ready () does not have to call before DOM is ready and event inside of the ready () is triggered. Just to clarify a little bit - here's the code which would illustrate the problem:
How to define a function outside document ready?
The correct approach is to define the function outside document.ready and call it inside: // We define the function function validate () { console.log ('validated!'); } $ (document).ready (function () { // we call the function validate (); });
What is jQuery document ready event?
This document.ready event is to prevent any jQuery code from running before the document is finished loading (is ready). This is the earliest safe point of the page loading process where we can manipulate our DOM elements. This allows you to write your jQuery (or JavaScript) code before the body tag.
