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I believe you've already used that tool and it told you there was lots of unused javascript. Keep in mind that just because it was unused, doesn't mean it isn't in use. … Fundamentally, the real question is why you have so many javascript files being loaded in the first place. …

Yes! Yes you can! You can use this code to retrieve a stored option: $value = get_post_meta($post->ID,'customfieldname',true); // where true means only return 1 custom field by this name You can u …

I would advise you build the site without the AJAX and then add AJAX on top so that everything degrades gracefully should an error occur or if javascript is turned off. …

Javascript runs as soon as it's loaded, you need to wait for the DOM ready event, and you do that in JS, not in WP: jQuery(document).ready(function(){ /* your code here */ }); …

https://codex.wordpress.org/Javascript_Reference/wp.media To be able to use the JavaScript-API, you first have to init all the needed JavaScript-Libraries and Styles: wp_enqueue_media(); …

In this tutorial, the post var status = 'draft'; (see code). So I am just worried that won't anyone able to hack that status? It depends who it is. A logged out user cannot create any posts at al …

Because until relatively recently WordPress supported PHP 5.2+, but that constant was only added in PHP 5.4. Given that wp_json_encode is meant to encapsulate and account for the differing behaviour …

Yes and no, it depends... The WP Scripts package depends on the @wordpress/dependency-extraction-webpack-plugin package at: https://github.com/WordPress/gutenberg/tree/master/packages/dependency-ext …

This is because your attribute is using the HTML to get its value, and the selector is .button-text, but there is nothing that matches that selector in the saved output. save({attributes}) { …

No, you cannot. You can add extra controls to a blocks toolbar or inspector because filters were added to the code that constructs those user interfaces. Think of it as being handed lego buildings bef …

const w = parseInt(svg.getAttribute('width')); const h = parseInt(svg.getAttribute('height')); Change those 2 lines so that w and h have the desired values. E.g. const w = 101; Will make the result …

A save component is intended to save static HTML, and can rely only on the blocks attribute. No interactivity, no local state, no AJAX requests, etc, just block attributes. If you achieve what you're …

You cannot embed blocks as react components this way, and you should not try to use other blocks as user interface components by setting innerblocks with a locked template. Instead, use 2 filters to m …

adding-an-endpoint-to-wordpress-rest-api-for-file-uploads/ you may recognise some parts of the error checking lots more error checking, it should never be triggered but if it does then the REST API will pass it back to your javascript …

I have widgets that have javascript controls attached to them. If the widget is present when the widget admin page loads, the controls work correctly. … When I add a new widget, they do not work correctly, I get the markup, but no javascript events take effect. …