How to run Javascript in WordPress Admin control panel?

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I’m creating a WordPress plugin that returns the value of a select box when an admin selects a value from the select box in admin panel, however, it doesn’t seem to work. The alert window doesn’t pop up. Here’s my HTML code. 

<select id="sweets">
  <option>Chocolate</option>
  <option>Candy</option>
  <option>Taffy</option>
</select>
<div id="choice"></div>

Here’s my code for the plugin.

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<?php
add_action( 'wp_enqueue_scripts', 'theme_name_scripts' );
function theme_name_scripts(){
    wp_register_script('selection', get_stylesheet_directory_uri() . '/js/selections.js', array('jquery') );
    wp_enqueue_script('selection');
}
?>

And lastly, here’s my Javascript code. 

jQuery(document).ready(function() {
    jQuery("#sweets").change(function() {
        var str = "";
        jQuery("select option:selected").each(function() {
            str += $(this).text() + " ";
        });
        jQuery( "#choice" ).text( str );
    }).change();
});

Thanks for your help.

Post Views: 2

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1 comment

  1. admin_enqueue_scripts hook is the first action hooked into the wp admin scripts actions.

    so you should use this 

    <?php add_action( 'admin_enqueue_scripts', 'theme_name_scripts' ); ?>

    instead of 

    add_action( 'wp_enqueue_scripts', 'theme_name_scripts' );

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