Search for a command to run...
Series
What is Synchronous in JavaScript? JavaScript is a synchronous single-threaded language. Synchronous means the execution of the code happens sequentially means only one statement can be executed at a time. Each statement executes after the execution ...
What is a callback? A callback function is a function that is passed into another function as an argument, which is then invoked inside that outer function after when a specific task is completed. // add function function add(x,y){ return x+y } ...
A Promise is an object which is used to find out if the asynchronous operation is completed or not. The Promise object has two properties: state and result. State: pending: initial state, neither fulfilled nor rejected. fulfilled: meaning that the ...
We use the then() and catch() method to handle promises. But we have another way of handling promises and that is async/await. Sometimes, using too many then() and catch() creates messy and unreadable code. async/await is just a more elegant way of h...
Javascript is a synchronous single-threaded language. JS executes all operations on a single thread. It executes one thing at a time. The Event loop gives us the illusion of asynchronous programming in JavaScript. Before understanding the event loop,...
