Remove jQuery dependency

[joshuarrrr]

We're not using it heavily, so it should be fairly straightforward to replace jQuery calls with vanilla JS.

[jase-d-ace]

does it need to be removed from anywhere besides here?

[joshuarrrr]

Yeah, jQuery.find() is also used: https://github.com/Parsely/wp-parsely/search?q=jQuery&unscoped_q=jQuery

[jblz]

#236 got us a lot of the way there, but the recommended widget still relies on jQuery:

wp-parsely/src/class-parsely-recommended-widget.php

Lines 95 to 116 in 3cca62a

	wp_enqueue_script( 'jquery' );
	$allowed_tags = wp_kses_allowed_html( 'post' );
	$title_html = $args['before_widget'] . $args['before_title'] . $title . $args['after_title'];
	echo wp_kses( $title_html, $allowed_tags );
	// Set up the variables.
	$options = get_option( 'parsely' );
	$full_url = $this->get_api_url(
	$options['apikey'],
	$instance['published_within'],
	$instance['sort'],
	$instance['boost'],
	$instance['return_limit']
	);
	?>
	<script data-cfasync="false">
	// adapted from https://stackoverflow.com/questions/7486309/how-to-make-script-execution-wait-until-jquery-is-loaded
	function defer(method) {
	if (window.jQuery) {

[pauarge]

jQuery has been removed