Leandro Severino LeanSeverino1022

For just quick reference, check the snippets below. If want to learn check out these resources:

See Bill Erickson's article -https://www.billerickson.net/code/wp_query-arguments/
See Unlocking Power of Code Sec 8 - "Manipulate Default Url Based Queries"
https://code.tutsplus.com/tutorials/wp_query-arguments-posts-pages-and-post-types--cms-23164

Customizing the WordPress Query – using pre_get_posts for the main query

https://www.udemy.com/course/chrome-extension-dev/learn/lecture/6407112? https://code.likeagirl.io/how-i-wrote-my-first-google-chrome-extension-using-spotifys-api-90de4ffc6ef3 https://thoughtbot.com/blog/how-to-make-a-chrome-extension

http://www.adambarth.com/experimental/crx/docs/content_scripts.html https://developer.chrome.com/extensions/getstarted for VUE - https://www.sitepoint.com/build-vue-chrome-extension/ Add an item

How to create a table in a SQL database https://flaviocopes.com/sql-create-table/

How to insert data in a SQL database table https://flaviocopes.com/sql-insert-data/

How to get data from a SQL database table https://flaviocopes.com/sql-select/

How to handle null data in a SQL database https://flaviocopes.com/sql-null/

Great reference for functions by Category(Posts, Categories, Custom Post Type, Pages, etc.)

note: I have found out that some functions that are available in some sources may not be available in these resources I have listed.

CODING STANDARDS link

THe Famous Loop in WP - heart and soul of WP

page, index, and single php files all have one very important thing in common and that is they all use the famous loop

  while (have_posts()) {
      the_permalink()
      the_post()
      the_title()
 the_content()

Add custom CSS / JS file in theme

add_action( 'wp_enqueue_scripts', 'custom_site_files');

function custom_site_files() {
	wp_enqueue_script('main-university-js', get_theme_file_uri('/js/scripts-bundled.js'))
    wp_enqueue_style('font-awesome', '//maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css');
    wp_enqueue_style( 'another-style', get_template_directory_uri() . '/css/reset.css');

Wait until all jQuery Ajax requests are done and then do something...

Example on when to use: I want that after all promises are resolved, do something. For example every ajax request adds the ajax response data in an array. I want to make sure all data has been added before doing something else.

#1

	// You can create an array of promises so that once all promises are resolved you can run your all done code.
    
  var promises = []


	//checkout unlocking power with code sec 8- Ordering (Sorting) Custom Queries
	<?php
	$today = date('Ymd');
	$homepageEvents = new WP_Query(array(
	'posts_per_page' => -1,
	'post_type' => 'event',
	'meta_key' => 'event_date',
	'orderby' =>'meta_value_num',
	'order' => 'ASC',

	//Just copy paste the code in any php file and see the result

	//Display ALL post types

	$post_types = get_post_types();

	foreach ( $post_types as $post_type ) {

	echo '<p>' . $post_type . '</p>';
	}

	const debounce = (func, delay) => {
	let debounceTimer //to maintain internal reference of timeout so we can clear it
	return function () {
	const context = this
	const args = arguments
	clearTimeout(debounceTimer)
	debounceTimer
	= setTimeout(() => func.apply(context, args), delay)
	}
	}