$ is not a function - jQuery error || 100% working solution

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jQuery provides the global jQuery object (which is present on your page). You can do the following to "get" $ back:

<script > jQuery(function($) { 

 $("#yourID").html('Text Changed'); 

 });

 </script>

 But Here you have to need add you jQuery File in your Theme.
 and also you have to need jQuery CDN in you wordpress . 
 Just Copy Past this code - 

 function add_theme_scripts() { 
 //wp_enqueue_style( 'style', get_stylesheet_uri() ); 
 //add jquery cdn
 wp_enqueue_script( 'jQuery','https://ajax.googleapis.com/ajax/libs /jquery/3.6.0/jquery.min.js'); } 

add_action( 'wp_enqueue_scripts', 'add_theme_scripts' );

 And if you add external javascript or jQuery file then you can add like this -- 

 function task_enqueue_scripts() {
 wp_enqueue_script( 'Your_jsFilename', get_stylesheet_directory_uri().
'/yourjsfilename.js', array('jquery'), null, true ); 

 } 

add_action( 'wp_enqueue_scripts', 'task_enqueue_scripts' ); 

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