Gutenberg | A meaningful web typography starter kit

I'm quiete desperate at the moment. I tried to build my first custom block for Gutenberg editor according to these tutorials:

• https://awhitepixel.com/blog/wordpress-gutenberg-create-custom-block-tutorial/
• https://developer.wordpress.org/block-editor/how-to-guides/javascript/js-build-setup/ and https://developer.wordpress.org/block-editor/how-to-guides/block-tutorial/writing-your-first-block-type/

I followed exactly the tutorials, but I can't even see the first example block in the Gutenberg editor. In the browser console occurs the error

I use Gutenberg with WordPress and I would like to check some fields before the user publish his post.

I would like to check if the featured image, the title and a simple text field in a meta-box are not empty.

If a field is empty a notification is displayed and I locked the "Publish" button.

For the moment all works fine with the featured image and the title. But when I'm trying to check is the text field in the meta-box is empty I got errors :

I have a custom Gutenberg block (https://pastebin.com/bV2k5Ekc) in which I display text, link and an image. I want to change it so so instead of saving the image URL as a background image of the container, to use an img tag. Unfortunately - I can't manage to create the deprecation correctly - I fail at assigning the attributes parameters in the deprecation:

From this:

When I need to hook code to the "moment a post is added or updated" in WordPress, the WordPress API provides me with save_post() hook.

Nice and easy to add an action to it, so we can perform our own custom logic whenever a post is updated or created. Simple example:

Adding tags to WordPress pages

I try to display both posts and pages that are tagged with the same tag when I'm on a WordPress tag page. I'm using some custom code to be able to add the tag functionality to WordPress pages. Adding a tag to a page works and I can also display the tag on the page when I'm using in a page template.

I'm using this code (in my child theme functions.php) to register the tag functionality to pages:

I just launched my store on wordpress and I ran into a problem: When I am on the home page of the site, all my product titles are in H2 and should be in h3 (SEO reasons), my recommendation products are also in h2 instead of h3 (on the single product page and in collections, i would like to change them all to h3). I looked for a long time where the problem could come from, searched all the files of the theme to change any title from h2 to h3 but nothing helped, I can't find where it is! I also asked the theme creators for help but they told me it was woocomerce's fault and there was nothing they could do ..

A lot of people have had some of the same problem under other themes but they don't have the same "function.php" as me. I also followed this: How can I change the product

Can someone help me on this problem ?

here is my "function.php" but i dont think it'll help..

Platform users have the ability to post offers. These offers are displayed in a post table.

You can see the post table here - https://www.b2bmember.com/b2b-marketplace/

Post table is inserted with a shortcode: [posts_table]

There is a possibility to only display posts from a specific author by adding author="x" at the end (x= user id).

Example: [posts_table author="x"]

The goal is to display posts from each user on their profile page.

I need a solution where every user has a corresponding shortcode in their profile page automatically / programmatically.

To achieve this, I created a function that creates a shortcode which is the same post table shortcode but with the user/author id part at the end.

Creating a dictionary from the play Macbeth

(credit to @Ajax1234)