What is callback ?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 specific task or at a particular event. Callbacks are commonly used in asynchronous programming, event ...Feb 12, 2024·2 min read
how JS exactly workslet'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 function will console 30. but how this above code get executed in background. Now inside JavaScript...Feb 12, 2024·2 min read