Answers for "wordpress deque jquery in wordpress"

wordpress enqueue script jquery dependency

function script_that_requires_jquery() {
    wp_register_script( 'script-with-dependency', 'http://www.example.com/script-with-dependency.js', array( 'jquery' ), '1.0.0', true );
    wp_enqueue_script( 'script-with-dependency' );
}
add_action( 'wp_enqueue_scripts', 'script_that_requires_jquery' );

wordpress add jquery script

Here is an example of how your jQuery script 
(in wp-content/themes/your-theme/js/your-scrript.js) might look:

jQuery(document).ready(function($) {
  $('#nav a').last().addClass('last');
})