how to document ready jquery code example

Example 1: document ready

$( document ).ready(function() {
    console.log( "ready!" );
});

Example 2: jquery doc ready

// A jQuery( document ).ready() block.
jQuery( document ).ready(function() {
    console.log( "ready!" );
});

Example 3: document. ready

$( document ).ready(function() {
    console.log( "ready!" );
});