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Use promises in JavaScript

Track :

Programming
Course Presenter :

ProgrammingKnowledge

Lessons no : 92

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What will you learn in this course?
  • Master asynchronous JavaScript by managing API calls, file operations, and timeouts with Promises, async, and await techniques.
  • Implement Promise chaining, error handling, and cleanup using .then(), .catch(), and .finally() for reliable code execution.
  • Combine multiple Promises efficiently with Promise.all() and Promise.race() to optimize concurrent asynchronous tasks.
  • Write clean, maintainable, and responsive web applications by integrating Promises with modern JavaScript features.

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  • The Certificate is free !
Lessons | 92
All JavaScript Methods You Should Know Complete Beginner Guide to JS String Array DOM More
00:09:50

All JavaScript Methods You Should Know Complete Beginner Guide to JS String Array DOM More
How to Count Frequency of Elements in a JavaScript Array 2025 Guide to Arrays and Object Mapping
00:05:30

How to Count Frequency of Elements in a JavaScript Array 2025 Guide to Arrays and Object Mapping
How to Parse JSON Data in JavaScript Convert JSON Strings to JavaScript Objects with JSON parse
00:06:25

How to Parse JSON Data in JavaScript Convert JSON Strings to JavaScript Objects with JSON parse
How to Build a Countdown Timer with JavaScript Real Time Timer Project with DOM setInterval
00:06:27

How to Build a Countdown Timer with JavaScript Real Time Timer Project with DOM setInterval
How to Dynamically Add and Remove Form Fields in JavaScript Repeating Input Fields Made Easy
00:12:21

How to Dynamically Add and Remove Form Fields in JavaScript Repeating Input Fields Made Easy
How to Make a Stopwatch Using JavaScript DOM Methods Start Stop Reset Timer Functions Explained
00:15:02

How to Make a Stopwatch Using JavaScript DOM Methods Start Stop Reset Timer Functions Explained
How to Build a Live Character Counter in JavaScript Real Time Input Limit Tracker for Forms Text
00:04:37

How to Build a Live Character Counter in JavaScript Real Time Input Limit Tracker for Forms Text
How to Create a Digital Clock Using JavaScript Real Time Clock with Live Time Display inJavaScript
00:08:19

How to Create a Digital Clock Using JavaScript Real Time Clock with Live Time Display inJavaScript
How to Handle Keyboard and Mouse Events in JavaScript Complete Guide with Real Time Examples
00:07:11

How to Handle Keyboard and Mouse Events in JavaScript Complete Guide with Real Time Examples
How to Create a Copy Button for Input Field Using JavaScript Copy to Clipboard Feature Made Easy
00:05:09

How to Create a Copy Button for Input Field Using JavaScript Copy to Clipboard Feature Made Easy
How to Toggle Visibility of Elements in JavaScript Show or Hide HTML Elements Dynamically with JS
00:05:02

How to Toggle Visibility of Elements in JavaScript Show or Hide HTML Elements Dynamically with JS
How to Remove Elements from the DOM in JavaScript Delete Nodes Dynamically with Vanilla JS Easily
00:04:17

How to Remove Elements from the DOM in JavaScript Delete Nodes Dynamically with Vanilla JS Easily
How to Create and Use Constants in JavaScript with const Understand Block Scope Immutability
00:04:21

How to Create and Use Constants in JavaScript with const Understand Block Scope Immutability
How to Create a Light and Dark Mode Toggle in JavaScript Add Theme Switcher to Your Website Easily
00:07:04

How to Create a Light and Dark Mode Toggle in JavaScript Add Theme Switcher to Your Website Easily
How to Write and Use Do While Loops in JavaScript Run Code at Least Once with Real Examples
00:06:09

How to Write and Use Do While Loops in JavaScript Run Code at Least Once with Real Examples
How to Create and Append Elements to the DOM in JavaScript Build Dynamic Content with Vanilla JS
00:07:05

How to Create and Append Elements to the DOM in JavaScript Build Dynamic Content with Vanilla JS
How to Add and Remove CSS Classes Dynamically in JavaScript DOM Class Manipulation Made Easy
00:05:28

How to Add and Remove CSS Classes Dynamically in JavaScript DOM Class Manipulation Made Easy
How to Get and Set Input Values in JavaScript Read Update Form Fields Dynamically with Vanilla JS
00:06:10

How to Get and Set Input Values in JavaScript Read Update Form Fields Dynamically with Vanilla JS
How to Write and Use While Loops in JavaScript Beginner s Guide to Looping with Examples 2025
00:05:46

How to Write and Use While Loops in JavaScript Beginner s Guide to Looping with Examples 2025
How to Make a Responsive Image Slider in JavaScript Build a Custom Carousel Without Any Library
00:11:04

How to Make a Responsive Image Slider in JavaScript Build a Custom Carousel Without Any Library
How to Write and Use For Loops in JavaScript Beginner s Guide to Looping Through Arrays Values
00:05:46

How to Write and Use For Loops in JavaScript Beginner s Guide to Looping Through Arrays Values
How to Create a Simple Accordion in JavaScript Step by Step Guide to Build Toggle Sections Easily
00:07:27

How to Create a Simple Accordion in JavaScript Step by Step Guide to Build Toggle Sections Easily
How to Access HTML Elements Using JavaScript Learn getElementById querySelector DOM Basics
00:09:55

How to Access HTML Elements Using JavaScript Learn getElementById querySelector DOM Basics
What is NaN in JavaScript and How to Handle It Detect Fix Avoid Not a Number in Your JS Code
00:07:14

What is NaN in JavaScript and How to Handle It Detect Fix Avoid Not a Number in Your JS Code
How to Take User Input Using Prompt in JavaScript Get Use Input from Users with Real Examples
00:05:02

How to Take User Input Using Prompt in JavaScript Get Use Input from Users with Real Examples
Understanding the this Keyword in JavaScript Learn How this Works in JavaScript 2025 Guide
00:08:49

Understanding the this Keyword in JavaScript Learn How this Works in JavaScript 2025 Guide
How to Build a Simple Modal Popup in JavaScript Easy Guide to Create Custom Modal from Scratch
00:08:00

How to Build a Simple Modal Popup in JavaScript Easy Guide to Create Custom Modal from Scratch
How to Generate a List from an Array Dynamically Using JavaScript Display Array Items Easily in JS
00:04:27

How to Generate a List from an Array Dynamically Using JavaScript Display Array Items Easily in JS
How to Shallow Clone Objects in JavaScript Learn to multiple Objects in JavaScript easily 2025
00:05:53

How to Shallow Clone Objects in JavaScript Learn to multiple Objects in JavaScript easily 2025
How to Disable a Button After Click Using JavaScript Prevent Multiple Clicks with One Line of Code
00:04:54

How to Disable a Button After Click Using JavaScript Prevent Multiple Clicks with One Line of Code
How to Copy Text on Click Using JavaScript Create Copy to Clipboard Button with One Line of Code
00:05:08

How to Copy Text on Click Using JavaScript Create Copy to Clipboard Button with One Line of Code
How to Debounce a Function in JavaScript Improve Performance by Limiting Function Execution Freq
00:05:26

How to Debounce a Function in JavaScript Improve Performance by Limiting Function Execution Freq
How to Show or Hide Elements with JavaScript Toggle Visibility Using Style Classes Display Prop
00:06:39

How to Show or Hide Elements with JavaScript Toggle Visibility Using Style Classes Display Prop
How to Memoize a Function in JavaScript Boost Performance with Caching and Optimize Recursive Code
00:09:17

How to Memoize a Function in JavaScript Boost Performance with Caching and Optimize Recursive Code
How to Create Custom Events in JavaScript Learn dispatchEvent CustomEvent with Real Examples
00:05:39

How to Create Custom Events in JavaScript Learn dispatchEvent CustomEvent with Real Examples
How to Chain Array Methods in JavaScript Use map filter reduce Together for Clean Code
00:05:53

How to Chain Array Methods in JavaScript Use map filter reduce Together for Clean Code
How to Build a Dropdown Menu with JavaScript Create Simple Interactive Menu Using HTML CSS JS
00:07:23

How to Build a Dropdown Menu with JavaScript Create Simple Interactive Menu Using HTML CSS JS
How to Flatten an Array in JavaScript Use flat Recursion Other Methods to Handle Nested Arrays
00:05:11

How to Flatten an Array in JavaScript Use flat Recursion Other Methods to Handle Nested Arrays
How to Validate a Form Using JavaScript Client Side Form Validation Tutorial with Real Examples
00:09:36

How to Validate a Form Using JavaScript Client Side Form Validation Tutorial with Real Examples
How to Deep Clone Objects in JavaScript Learn JSON Clone StructuredClone Recursion Methods
00:08:32

How to Deep Clone Objects in JavaScript Learn JSON Clone StructuredClone Recursion Methods
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Use promises in JavaScript, in this course teaches you how to manage asynchronous code efficiently using Promises. You’ll learn how Promises simplify handling delayed operations such as API calls, file reading, or timeouts without falling into “callback hell.” The course explains the core concepts of Promise states — pending, fulfilled, and rejected — and how to use .then(), .catch(), and .finally() for chaining and error handling. You’ll explore advanced techniques like combining multiple Promises with Promise.all() and Promise.race(), as well as integrating Promises with async and await. Through practical examples, you’ll learn to write clean, readable, and reliable asynchronous JavaScript code. By the end, you’ll have the skills to build responsive web applications that perform smoothly and handle async processes with ease. ProgrammingKnowledge