How to do the simplest possible frontend ajax call from a plugin?

I’m trying to make this as simple as possible just to get the basics down, but I keep getting a 400 error and 0 response from admin-ajax.php. I just want to hit ajax with some data. Here’s my js:

jQuery(document).ready(function($  ) {   $  ('body').click(function(e){       $  .ajax({           action: 'the_ajax_hook',           data: 'field=data',           type: 'post',           url: the_ajax_script.ajaxurl,           success: function(response_from_the_action_function) {               $  ("#site-content").html(response_from_the_action_function);           }       });   }); }); 

And here’s my plugin:

function load_my_scripts(){      wp_enqueue_script( 'my-ajax-handle', plugin_dir_url( __FILE__ ) . 'ajax.js', array( 'jquery' ) );      wp_localize_script( 'my-ajax-handle', 'the_ajax_script', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ) ) ); }  add_action( 'wp_enqueue_scripts', 'load_my_scripts' ); add_action( 'wp_ajax_the_ajax_hook', 'the_action_function' ); add_action( 'wp_ajax_nopriv_the_ajax_hook', 'the_action_function' );   function the_action_function(){   echo "field is " . $  _POST['field'];   die(); } 

The localization seems to work because it hits the right URL for admin_ajax, but it’s a bad request and returns nothing.

I know I’m missing something obvious but that’s the thing about obvious mistakes, they don’t seem obvious until someone else shows it to you. What am I missing?

replace featured image from frontend

I need to replace the featured image of a post in the frontend. I’am using this code without success:

<form id="featured_upload" method="post" action="#" enctype="multipart/form-data">     <input type="file" name="my_image_upload" id="my_image_upload"  multiple="false" />     <input type="hidden" name="post_id" id="post_id" value="55" />     <?php wp_nonce_field( 'my_image_upload', 'my_image_upload_nonce' ); ?>     <input id="submit_my_image_upload" name="submit_my_image_upload" type="submit" value="Upload" /> </form>        <?php  if (      isset( $  _POST['my_image_upload_nonce'], $  _POST['post_id'] )      && wp_verify_nonce( $  _POST['my_image_upload_nonce'], 'my_image_upload' )     && current_user_can( 'manage_options', $  _POST['post_id'] ) ) {      include('wp-admin/includes/image.php' );     include('wp-admin/includes/file.php' );     include('wp-admin/includes/media.php' );      if (has_post_thumbnail( $  _POST['post_id'] )) {     $  featured_image = wp_get_attachment_image_src(get_post_thumbnail_id( $  post->ID ), 'full' );     }     $  attachment_id = media_handle_upload( 'my_image_upload', $  _POST['post_id'] ); 

What am’I missing?

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Front-end website development / bug fix

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Front-end website development / bug fix

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What is the name of the widget that is used for showing tutorials about a frontend app

There are some sites I’ve been on where, the first time you visit it, it will show you a little tutorial.

The tutorial will have big round animations that encircle a button and say something like “Click this button to add an item to your shopping cart!” and then you click Next and another button is highlighted, etc.

Is there an official name for this widget, or behaviour? I remember seeing a widget framework like “material-ui” contain aa widget like this but I don’t remember…

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Category: PHP
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Woocommerce – Order info is empty on frontend?

I’m trying to create a page similar to the checkout page with all the customer, billing, and order information. As a last resort, I tried to retrieve the unique order link, but I had trouble with even that.

This is my current code, and the array shows up with empty fields.

<?php $  order = new WC_Order( $  order_id ); $  items = $  order->get_items(); foreach ( $  items as $  item ) {     $  product_name = $  item['name'];     $  product_id = $  item['product_id'];     $  product_variation_id = $  item['variation_id']; }  print_r($  order) ?> 

Empty array