I'm a software developer and writer, passionate about learning and sharing knowledge and one way I do that is through writing. I'm a software developer and writer, passionate about learning and ...

This blog post is about comparing the running times of the most commonly used ways to loop through an array in JavaScript in order to see which one is the most efficient. Here is the code used for an ...

JavaScript’s arrays can hold heterogeneous types, change size on the fly, and readily insert or remove elements. Traditional methods like slice, splice, and push/pop do this by operating on the array ...

Asynchronous code (async code) says: go do something while I do other things, then let me know what happened when the results are ready. Also known as concurrency, async is important in a variety of ...

function foo(callback) { console.log('grape'); callback(); } function bar() { console.log('banana'); } const fruitBasket = function() { console.log('apple'); bar ...

PHP build-in function array_map first argument $callback type is callable|null, but passing null value causes reporting an error: Expected type 'callable'. Found 'null'.