종우의 컴퓨터 공간

What Is Promises? A promise in NodeJS is similar to a promise in real life. It is an assurance that something will be done. Promises is used to keep track of whether the asynchronous event has been executed or not and determines what happens after the event has occurred. It is an object having 3 states. What Are Three States In Promises? · Pending: Initial State, before the event has happened · ..

Background To fully understand the concept of higher order function, you first have to understand what Functional Programming is and the concept of First-Class Functions. What Is Functional Programming? In most simple term, Functional Programming is a form of programming in which you pass functions as parameters to other functions and also return them as values. In functional programming, we thi..