How to use customize_sanitize_js_this-id filter in WordPress

Hey there! If you’re working with WordPress hooks, you’re in the right place. Let’s dive into the customize_sanitize_js_this-id filter. This hook is quite useful when you need to sanitize JavaScript settings.

First, to use the customize_sanitize_js_this-id filter, you need to register it using add_filter. You can place this code in the functions.php file of your activated theme or in a custom WordPress Plugin. Personally, I prefer creating a custom WordPress Plugin to avoid any issues during theme updates.

Check out the live examples below where I’ve defined a function called weplugins_modify_customize_sanitize_js_this-id_defaults. This function takes two parameters and is registered using add_filter. The parameters are the hook name, the function name, the priority, and the number of arguments. Sometimes, you might need to remove a registered hook, and for that, you can use remove_filter.

Parameters

Here are the 2 parameters required to use this hook:

• $value : (mixed) The setting value.
• $setting : (WP_Customize_Setting) WP_Customize_Setting instance.

Live Example 1: Basic Usage

This example shows how to use the customize_sanitize_js_this-id filter.

    function weplugins_modify_customize_sanitize_js_this-id_defaults($value, $setting) { 
        // Update the $value variable according to your website requirements and return this variable.
        return $value; 
    }
    // add the filter
    add_filter( "customize_sanitize_js_this-id", "weplugins_modify_customize_sanitize_js_this-id_defaults", 10, 2 );
    

Live Example 2: Conditional Modification

Here’s how you can conditionally modify the $value variable.

    function weplugins_modify_customize_sanitize_js_this-id_defaults($value, $setting) { 
        // Conditionally modify the $value variable
        if ($setting->id == 'specific_setting') {
            $value = 'new_value';
        }
        return $value; 
    }
    // add the filter
    add_filter( "customize_sanitize_js_this-id", "weplugins_modify_customize_sanitize_js_this-id_defaults", 10, 2 );
    

Live Example 3: Removing the Hook

To remove a hook callback, use the example below.

    // remove the filter
    remove_filter( "customize_sanitize_js_this-id", "weplugins_modify_customize_sanitize_js_this-id_defaults", 10, 2 );
    

Please make sure to provide the same callback function name, priority, and number of arguments while removing the hook callback.

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