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In JavaScript, a callback is a function that is passed as an argument to another function and is intended to be executed after the completion of a...
Web API is a kind of power that allow developers to interact with various browser features, manipulate the Document Object Model (DOM), and perform...
The event loop is core to the performance of Node.js, helping it to perform asynchronous and non-blocking operations The event loop constantly checks...
So basically, Call stack is a mechanism used in JavaScript to keep the track of multiple function call. Call Stack uses STACK which means Last In...
JavaScript is a "single-threaded" language because it has a single execution thread in the browser environment. This means that JavaScript code is...
let's run a simple code let a = 10; let b = 20; function sum(a, b) { let sum = a + b; console.log (sum); } sum(a, b); we all know the output. sum...