Learn how to create a callback function in JavaScript and use it for various purposes, such as asynchronous programming, modularity, flexibility, and custom events.

Callbacks work fine for handling asynchronous code in JavaScript, but promises and the async and await keywords are cleaner and more flexible. Topics Spotlight: New Thinking about Cloud Computing ...

What is callback function in JavaScript? A function which takes another function as an argument and call that function in itself is known as callback function, in other words when we take a function ...

The callback function accepts a Customer object and returns a string. Listing 1 shows the code that both defines the variable and assigns a function to the variable to it using the JavaScript-like ...

Learn how to create a callback function in JavaScript and use it for various purposes, such as asynchronous programming, modularity, flexibility, and custom events.

A callback function is a function passed into another fucntion as an argument, which is then invoked inside the outer function to complete some kind of routine or action. In this javascript file, I ...