Course / Course Details

Use promises in JavaScript

  • Gayathri Perumal image

    By - Gayathri Perumal

  • 0 students
  • N/A
  • (0)

Course Description

  • This course is designed for beginners and aspiring JavaScript developers who want to understand and use Promises for handling asynchronous operations effectively. Learners will explore the fundamentals of asynchronous JavaScript, the purpose of Promises, and how they improve code readability compared to callbacks. The course covers creating Promises, handling success and failure using .then(), .catch(), and .finally(), chaining multiple Promises, and working with real-world examples such as API calls and delayed operations. By the end of the course, participants will be able to write cleaner, more maintainable asynchronous JavaScript code confidently.

Course Outcomes

  • Understand asynchronous programming concepts in JavaScript
  • Explain the role and benefits of Promises over callback functions
  • Create and use JavaScript Promises effectively
  • Handle resolved and rejected Promise states using .then() and .catch()
  • Use .finally() for cleanup operations
  • Chain multiple Promises for sequential execution
  • Work with Promise-based API calls and asynchronous tasks
  • Debug common Promise-related errors in JavaScript
  • Write clean, efficient, and maintainable asynchronous code
  • Apply Promise concepts in real-world web development projects

Course Curriculum

  • 1 chapters
  • 92 lectures
  • 0 quizzes
  • N/A total length
Toggle all chapters
1 All JavaScript Methods You Should Know Complete Beginner Guide to JS String Array DOM More
9.5 Min


2 How to Count Frequency of Elements in a JavaScript Array 2025 Guide to Arrays and Object Mapping
5.3 Min


3 How to Parse JSON Data in JavaScript Convert JSON Strings to JavaScript Objects with JSON parse
6.25 Min


4 How to Build a Countdown Timer with JavaScript Real Time Timer Project with DOM setInterval
6.27 Min


5 How to Dynamically Add and Remove Form Fields in JavaScript Repeating Input Fields Made Easy
12.2 Min


6 How to Make a Stopwatch Using JavaScript DOM Methods Start Stop Reset Timer Functions Explained
15.01 Min


7 How to Build a Live Character Counter in JavaScript Real Time Input Limit Tracker for Forms Text
4.36 Min


8 How to Create a Digital Clock Using JavaScript Real Time Clock with Live Time Display inJavaScript
8.19 Min


9 How to Handle Keyboard and Mouse Events in JavaScript Complete Guide with Real Time Examples
7.1 Min


10 How to Create a Copy Button for Input Field Using JavaScript Copy to Clipboard Feature Made Easy
5.09 Min


11 How to Toggle Visibility of Elements in JavaScript Show or Hide HTML Elements Dynamically with JS
5.02 Min


12 How to Remove Elements from the DOM in JavaScript Delete Nodes Dynamically with Vanilla JS Easily
4.16 Min


13 How to Create and Use Constants in JavaScript with const Understand Block Scope Immutability
4.2 Min


14 How to Create a Light and Dark Mode Toggle in JavaScript Add Theme Switcher to Your Website Easily
7.04 Min


15 How to Write and Use Do While Loops in JavaScript Run Code at Least Once with Real Examples
6.09 Min


16 How to Create and Append Elements to the DOM in JavaScript Build Dynamic Content with Vanilla JS
7.05 Min


17 How to Add and Remove CSS Classes Dynamically in JavaScript DOM Class Manipulation Made Easy
5.27 Min


18 How to Get and Set Input Values in JavaScript Read Update Form Fields Dynamically with Vanilla JS
6.1 Min


19 How to Make a Responsive Image Slider in JavaScript Build a Custom Carousel Without Any Library
11.04 Min


20 How to Write and Use While Loops in JavaScript Beginner s Guide to Looping with Examples 2025
5.45 Min


21 How to Write and Use For Loops in JavaScript Beginner s Guide to Looping Through Arrays Values
5.45 Min


22 How to Create a Simple Accordion in JavaScript Step by Step Guide to Build Toggle Sections Easily
7.27 Min


23 How to Access HTML Elements Using JavaScript Learn getElementById querySelector DOM Basics
9.55 Min


24 What is NaN in JavaScript and How to Handle It Detect Fix Avoid Not a Number in Your JS Code
7.14 Min


25 How to Take User Input Using Prompt in JavaScript Get Use Input from Users with Real Examples
5.02 Min


26 Understanding the this Keyword in JavaScript Learn How this Works in JavaScript 2025 Guide
8.48 Min


27 How to Build a Simple Modal Popup in JavaScript Easy Guide to Create Custom Modal from Scratch
7.59 Min


28 How to Generate a List from an Array Dynamically Using JavaScript Display Array Items Easily in JS
4.26 Min


29 How to Shallow Clone Objects in JavaScript Learn to multiple Objects in JavaScript easily 2025
5.53 Min


30 How to Disable a Button After Click Using JavaScript Prevent Multiple Clicks with One Line of Code
4.53 Min


31 How to Copy Text on Click Using JavaScript Create Copy to Clipboard Button with One Line of Code
5.08 Min


32 How to Debounce a Function in JavaScript Improve Performance by Limiting Function Execution Freq
5.25 Min


33 How to Show or Hide Elements with JavaScript Toggle Visibility Using Style Classes Display Prop
6.39 Min


34 How to Memoize a Function in JavaScript Boost Performance with Caching and Optimize Recursive Code
9.17 Min


35 How to Create Custom Events in JavaScript Learn dispatchEvent CustomEvent with Real Examples
5.38 Min


36 How to Chain Array Methods in JavaScript Use map filter reduce Together for Clean Code
5.53 Min


37 How to Build a Dropdown Menu with JavaScript Create Simple Interactive Menu Using HTML CSS JS
7.23 Min


38 How to Flatten an Array in JavaScript Use flat Recursion Other Methods to Handle Nested Arrays
5.1 Min


39 How to Validate a Form Using JavaScript Client Side Form Validation Tutorial with Real Examples
9.35 Min


40 How to Deep Clone Objects in JavaScript Learn JSON Clone StructuredClone Recursion Methods
8.31 Min


41 How to Round Numbers Using Math in JavaScript Math round Math floor Math ceil Explained
6.24 Min


42 How to Create and Use a Simple Timer in JavaScript setTimeout and setInterval for Beginners in JS
11.05 Min


43 How to Parse JSON Data in JavaScript Learn JSON parse to Read and Convert JSON Strings in JS
6.26 Min


44 How to Format Numbers with toFixed and parseFloat in JavaScript Round and Convert Values in JS
8.22 Min


45 How to Find Maximum and Minimum in an Array in JavaScript Use Math max and Math min in JS
5.23 Min


46 How to Check If an Array Includes a Value in JavaScript Simple JS Array Includes Tutorial in JS
7.48 Min


47 How to Use typeof in JavaScript Beginner Friendly Tutorial to Check Data Types in JS with Examples
8.51 Min


48 How to Use Switch Case in JavaScript Beginner Friendly Tutorial to Learn Switch Case with Examples
8.48 Min


49 How to Use Prototypes in JavaScript Understand Prototype Chain Inheritance 2025
10.22 Min


50 How to Use map in JavaScript Transform Arrays Easily with map Method 2025
10.12 Min


51 How to Generate Random Numbers in JavaScript Math random Explained 2025 Tutorial
13.47 Min


52 How to Format Strings with Template Literals in JavaScript Modern String Interpolation 2025
7.24 Min


53 How to Use Break Continue in Loops JavaScript Loop Control 2025 Tutorial
4.36 Min


54 How to Capitalize the First Letter of a String in JavaScript 2025
6.08 Min


55 How to Check for Undefined or Null in JavaScript 2025
5.52 Min


56 How to Convert Strings to Numbers Numbers to Strings in JavaScript Easy Type Conversion 2025
7.4 Min


57 How to Get Current Date Time in JavaScript Date Object Tutorial 2025 Guide
5.02 Min


58 How to Use Ternary Operator in JavaScript Simplify if else 2025 Beginner s Guide
6.49 Min


59 How to Use bind call apply in JavaScript Master Function Context this Keyword 2025
9.23 Min


60 How to Use Local Storage in JavaScript Save Retrieve Data Like a Pro 2025 Tutorial
18.12 Min


61 How to Use JavaScript Modules Import Export Like a Pro ES6 Modules 2025 Guide
4.45 Min


62 How to Use Session Storage in JavaScript Store Temporary Data in the Browser 2025 Guide
9.22 Min


63 How to Use reduce in JavaScript Master Array Reduction Accumulation 2025
13.32 Min


64 How to Use filter in JavaScript Filter Arrays Like a Pro 2025 Tutorial
11.15 Min


65 How to Use Template Literals in JavaScript 2025
12.32 Min


66 How to Use Logical Operators and in JavaScript Boolean Logic Explained 2025
8.59 Min


67 How to Use Event Listeners in JavaScript Step by Step Guide for Beginners 2025
5.12 Min


68 How to Reverse a String in JavaScript Easy Step by Step Tutorial 2025
5.19 Min


69 How to Use Closures in JavaScript Unlock Powerful Functions Scope 2025
11.04 Min


70 How to Use Destructuring in JavaScript Master Array Object Destructuring 2025
8.58 Min


71 How to Handle Events in JavaScript Complete Guide to Event Listeners Event Handling 2025
10.52 Min


72 How to Use the Spread Operator in JavaScript 2025
13.12 Min


73 How to Stop Event Propagation in JavaScript stopPropagation Explained Simply 2025
6.06 Min


74 How to Use the DOM in JavaScript Beginner s Guide to DOM Manipulation 2025
13.43 Min


75 How to Use preventDefault in JavaScript Stop Default Browser Actions Easily 2025
11.57 Min


76 How to Debug JavaScript Code 2025
7.43 Min


77 How to Use Try Catch in JavaScript 2025
7.14 Min


78 How to Use Arrow Functions in JavaScript 2025
16.26 Min


79 How to Use Fetch API in JavaScript 2025
6.47 Min


80 How to Use async await in JavaScript 2025
10.52 Min


81 How to Work With Arrays in JavaScript 2025
14.26 Min


82 How to Use Promises in JavaScript 2025
10.27 Min


83 How to Use setInterval in JavaScript How to Run Code Repeatedly with Timers 2025
8.48 Min


84 How to Use setTimeout in JavaScript How to Use Delays and Timers 2025
9.32 Min


85 How to Use Getters and Setters in JavaScript 2025
11.39 Min


86 How to Write and Use Functions in JavaScript 2025
14.05 Min


87 How To Use Static Methods In JavaScript 2025
9.28 Min


88 How to Use Inheritance in JavaScript JavaScript OOP Tutorial for Beginners
10.34 Min


89 How to Use JavaScript with CSS 2025
8.22 Min


90 How to Use Classes in JavaScript JavaScript ES6 OOP Tutorial for Beginners 2025
8.3 Min


91 How to Add JavaScript to HTML 2025
12.45 Min


92 How to Work With Arrays in JavaScript 2025
14.25 Min


Instructor

0 Rating
0 Reviews
1 Students
137 Courses

Course Full Rating

0

Course Rating
(0)
(0)
(0)
(0)
(0)

No Review found

Sign In or Sign Up as student to post a review

Student Feedback

You must be enrolled to ask a question