What will be the output of the given code?

There are 6 static methods in the Promise class. Promise.all Wait for all promises to be fulfilled, or for any to be rejected. If the returned promise fulfills, it is fulfilled with an aggregating array of the values from the fulfilled promises, in the same order as defined in the iterable…

Syntax of creating a Promise instance:- new Promise((resolve, reject)=> { .... }) Here we see that a Promise takes a callback function which further takes two arguments :- resolve method and reject method.

1. Can we use await only with promises? No, we can use await with promise as well as any object that implements a then function.

What is a Promise ? The Promise object represents the eventual completion (or failure) of an asynchronous operation and its resulting value. In other words, A Promise is a special JavaScript object. It produces a value after an asynchronous operation completes successfully, or an error if it does not complete successfully. The word ‘asynchronous’ means…

1. Guess the output

What is a function? A function in JavaScript is similar to a procedure — a set of statements that performs a task or calculates a value, but for a procedure to qualify as a function, it should take some input and return an output where there is some obvious relationship between the input and…

Type Coercion Type coercion is the automatic or implicit conversion of values from one data type to another. How Type Coercion is different from Type Conversion? Type Coercion si implicit whereas TypeConversion can be either implicit or explicit. Type Coercion — Js implicitly converts number 9 to string ‘9’ const value1 = "5"; const value2 = 9; let sum = value1 +…

Javascript is a dynamic and weakly typed language. Dynamic — Variables in JavaScript are not directly associated with any particular value type. let foo = 42; // foo is now a number foo = "bar"; // foo is now a string foo = true; // foo is now a boolean …