A callback function is a function that is passed as an argument to another function and is called by that function at some point. The callback function can be defined as a regular function, an ...

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However, JavaScript developers had been implementing ... to coordinate multiple layers of execution. Asynchronous functions that use callbacks take a function as a parameter, which will be called ...

Developers use JavaScript promises to model asynchronous ... the waters by showing an old-fashioned JavaScript function-with-argument-callback. Take my word for it, that gets messy.) ...

you can use a callback function to implement different sorting algorithms for an array which can be passed to the built-in array method sort. Creating a callback function in JavaScript requires a ...