WordPress – how to display random posts without duplicates

To have full control over displaying posts in WordPress we can use WP_Query class and create our own query. According...

WordPress custom admin page

When you write your own plugin, you often want to add dedicated page for its settings. In this post I...

How to use ajax in WordPress – on frontend and admin side

Ajax ( Asynchronous JavaScript and XML ) allows us do action in asynchronous way – without page reloading. It is...

How to add custom link to the WordPress plugin in admin page

When you write your own plugin, you may want to send users to settings page after they activate the plugin....

jQuery infinite scroll image gallery

Infinite scroll gallery is a simple and difficult task at the same time. It all depends on how you want...

React Hooks – useCallback hook example with React.memo higher-order component

UseCallback, same as useMemo hook, is useful in situation, when you want to improve performance of your app. Thanks to...

React Hooks – useMemo hook example

UseMemo hook returns memoized value. That’s why you can use it to optimize performance of your app. If you have...

React Hooks – useRef hook example

UseRef hook can be used in two ways. First, it allows to directly access to DOM element, so we can...

React Hooks – useEffect hook example

UseEffect hook runs after first render and after every other completed render (but we can change that, so it can...

React Hooks – useContext hook example

UseContext hook provides a way to pass data through the component tree without having to pass props down manually at...