Understanding asynchronous programming is akin to unlocking a powerful toolset for building efficient and responsive web applications. Asynchronous programming is essential to modern JavaScript ...

If you’re returning information from a then or catch handler, it will always be wrapped in a promise, if it isn’t a promise already. So, you never need to write code like this: If you are unsure if ...

Here's some pseudocode I want to use when the user clicks my deleteCustomer button: check that the user really wants to delete the customer ... AJAX call to retrieve Customer object .onsuccess (AJAX ...

A lightning-fast crash course on JavaScript, the world’s most popular programming language. From its 1995 origins as Mocha in Netscape to powering front-end apps, Node.js servers, mobile apps, and ...