WordPress update adds deferred script loading for faster page speeds and site performance. WordPress 6.4 loads scripts smarter to improve page speeds. JavaScript files now load deferred or async ...

Callbacks work fine for handling asynchronous code in JavaScript, but promises and the async and await keywords are cleaner and more flexible.

JavaScript’s async and await functions make for readable and maintainable asynchronous code. Just watch out for their downsides.

Promises make asynchronous processing simple, consistent and easy to use. And, with TypeScript and Promises.TypeScript providing support for generic Promises, you get both type safety and IntelliSense ...

$.when.then: Async If I’m using an asynchronous template loading mechanism for my Backbone.Marionette views (like in my BBCloneMail sample app), the above code only needs to have a jQuery deferred ...