jQuery don't loaded when use wp_enqueue_script in front


My plugin was reject, and i think i know why…

jQuery won’t to be loaded when un call him with this code :

function frontEndScript( $hook ){



add_action(‘wp_enqueue_scripts’, ‘frontEndScript’ );

When my page loaded i got this error : “Uncaught ReferenceError: jQuery is not defined

What’s wrong ?

I read somewhere wordpress autoload jQuery, but if i remove my code error still here.

Thanks for your help,
Best regards.

Oh, after an other look on the website i found a plugin which make mistakes…