Is it really necessary to wait for DOM ready to manipulate the DOM?

Question

Is it really necessary to wait for the \"ready\" (or \"window.onload\") events if your code only manipulates DOM elements that have already been parsed entirely?

The

Answer 1

Document is loaded in linear fashion so your code works correctly. Sometimes programmers do not use document ready for performance purpose when the javascript is not depends on the DOM below it. Here is some example.