The Complete JavaScript Course - Beginner to Advance in English > Promise in Javascript

Javascript Promises part 1

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The Promise constructor accepts a function (an executor) that will be executed immediately and two functions: resolve and reject, which must be called when the Promise is resolved (passing a result) (passing an error).

The addition of promises to the JavaScript programming language was revolutionary. To model asynchronous control-flow before promises, callbacks had to be passed into function calls. Promises make managing asynchronous activities in your React app considerably more readable and maintainable.

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Sachin

good course material

Pasalapudi Pujita Sri Naga Santhoshi

they has clearly explained and easily understand to all

Mohammad Suhail

Good trainer

Prabhat Yadav

Superb and amazing 😍🤩 enjoyable experience.

karthikeyan Karthik

Thankyou learnvern....

William Jimmy

This is by far the most comprehensive tutorial I ever come across. I was really excited to discover this amazing tutorial, but unfortunately couldn't continue due to keypad noise which I'm allergic to

Vijay Banjara

Amazing

VAISHNAVI RAJESH CHALKE

it helps me to clear my basic conceptual knowledge

Takhmina

Thank you! I enjoyed the course; I learned so much.

Anuj singh

great course for javascript

Javascript Promises part 1

Start a new search

How does Promise work in JavaScript?

What is a Promise in JavaScript scope?

Learner's Ratings

Reviews

Sachin

Pasalapudi Pujita Sri Naga Santhoshi

Mohammad Suhail

Prabhat Yadav

karthikeyan Karthik

William Jimmy

Vijay Banjara

VAISHNAVI RAJESH CHALKE

Takhmina

Anuj singh

Course Content

Introduction to Javascript

How to use LearnVern

Javascript Features

Ways to write and Add Javascript code

Comments in Javascript

Assignment : Introduction to JavaScript

JavaScript Variables

JavaScript Global Variable

Primitive Data Types in JavaScript

JavaScript - Non Primitive Datatypes

JavaScript arithmetic operators

JavaScript Comparison Operators

JavaScript Bitwise

Javascript Logical Operator

Javascript Assignment Operator

Special JavaScript Operators

JavaScript if/else Statement

JavaScript switch Statement

JavaScript do/while Statement

JavaScript for/in Statement

JavaScript Functions

JavaScript Function call()

JavaScript bind () vs apply () and call ()

Assignment : JavaScript Basics 1

Assignment : JavaScript Basics 2

Javascript Objects

JavaScript object methods part -1

JavaScript object methods part -2

JavaScript Arrays

JavaScript Arrays methods part 1

JavaScript Arrays methods part 2

JavaScript Arrays methods part 3

JavaScript Arrays method part 4

JavaScript Arrays methods part 5

JavaScript Arrays methods part 6

JavaScript string

JavaScript string methods part 1

JavaScript string methods part 2

JavaScript Date objects part 1

Java script Date objects part 2

JavaScript math object part 1

JavaScript math object part 2

JavaScript Numbers and Number Constants

JavaScript Number Methods

Assignment : JavaScript objects

Java script window- The Browser Object Model

Java script BOM- Window Object

Javascript BOM - History Object

Javascript BOM - Navigator object

Javascript BOM - Screen Object

Assignment : Browser Object Model

Javascript Document Object Model - DOM

Javascript Document Object Methods

Assignment : Document Object Model

Javascript Form Validations

Javascript Email Validations

Assignment : Javascript Validation

Java Script Classes

Java Script Prototypes

Java Script Constructors

Java Script Static Methods

Java Script OOps Encapsulation

Inheritance in Java Script