50 days of LeetCode - JavaScript Algorithms Coding Interview
50 days of LeetCode - JavaScript Algorithms Coding Interview is an intermediate-level online course from Udemy in JavaScript. It is structured in 20 modules with 5 stated learning outcomes, over 22.5 hours. It costs ₹459, certificate included. Learners rate it 4.5/5 from 10 ratings on Udemy, with 159 enrolled.
Part of our JavaScript courses collection, where we compare it against 12 other courses. See all JavaScript courses on Udemy.
Course highlights
| Provider | Udemy |
| Duration | 22.5 hours |
| Level | Intermediate |
| Mode | Self-paced |
| Language | English |
| Certificate | Yes — shareable certificate |
| Instructor | Interview Temple |
| Rating | 4.5★ (10 reviews) |
| Learners | 159 |
| Price | ₹459 ₹799 |
What you’ll learn
Level and time commitment
What this course covers
20 modulesThe 20-part outline Udemy publishes for this course, across 22.5 hours.
Module 1 · Microsoft Array Question: Container with most water (Medium)
Module 2 · Google Array Question: Valid mountain array (Easy)
Module 3 · Google Array Question: Boats to save people (Medium)
Module 4 · Facebook Array Question: Move Zeroes (Easy)
Module 5 · Amazon Array Question: Longest substring without repeating characters (Medium)
Module 6 · Arrays Question:Find first and last position of element in sorted Array (Medium)
Module 7 · Google Array question: first bad version (Easy)
Module 8 · Microsoft Math Question: Missing Number (Easy-ish)
Module 9 · Amazon Math Question: Count Primes
Module 10 · Airbnb Math Question: Single Number
Module 11 · Amazon Math Question: Robot return to origin (Easy)
Module 12 · Facebook Math Question: Add Binary (Easy)
Module 13 · Google Hash Tables / Dictionaries question: Two Sum (Easy)
Module 14 · Google Hash Tables / Dictionaries question: Contains Duplicate
Module 15 · Google Hash Tables / Dictionaries question: Majority Element
Module 16 · Facebook Hash Tables / Dictionaries question: Group Anagrams (Medium)
Module 17 · Hash Tables / Dictionaries question: 4sum 2 (Medium)
Module 18 · Microsoft Hash Tables / Dictionaries question: LRU Cache (Medium)
Module 19 · Linkedin Hash Tables / Dictionaries question: Minimum Window Substring (Hard)
Module 20 · Apple Linked list question: Merge Two Sorted Lists (Easy)
What learners rate it
Rated 4.5/5 by 10 learners on Udemy (checked 5 Oct 2026).
This rating is collected by Udemy from its own enrolled learners. We reproduce it as reported and do not accept paid or incentivised reviews. See it on Udemy →
Compiled by the CoursesGlobal editorial desk. Fees, ratings, duration and certificate details for the 1 course shown are read directly from Udemy course pages — we never estimate a price or a rating. Last verified 5 October 2026.
How we compare and rank courses · Our review policy · Affiliate disclosure
Compare with alternatives
Same topic, different trade-offs — here's who runs each one and what it's best at.
| Course | Provider | Rating | Price | Duration | Why pick this one | |
|---|---|---|---|---|---|---|
| 50 days of LeetCode - JavaScript Algorithms Coding Interview This |
 Udemy
|
4.5★ | ₹459 | 22.5 hours | Cheapest paid option (₹459) | |
| The Complete JavaScript Course 2026: From Zero to Expert |
Udemy
|
4.7★ | ₹509 | 69 hours | Highest rated (4.7★ from 234.3K reviews) | View ↗ |
| Modern JavaScript From The Beginning |
Udemy
|
4.7★ | ₹629 | 22 hours | All Levels · 22 hours · certificate | View ↗ |
| WebDriverIO + Node.js -JavaScript UI Automation from Scratch |
Udemy
|
4.7★ | ₹529 | 11 hours | Quickest to finish (11 hours) | View ↗ |
Where JavaScript leads
Roles we map to JavaScript on CoursesGlobal. This is our own mapping of subject to job, not a placement claim by Udemy.
Browse every course we track for one of these — courses for full-stack developers.
Common questions
How much does 50 days of LeetCode - JavaScript Algorithms Coding Interview cost?
It is listed at ₹459 on Udemy, last checked 5 October 2026. Course prices change and providers run discounts, so treat this as the list price and confirm on the provider page.
Does 50 days of LeetCode - JavaScript Algorithms Coding Interview come with a certificate?
Yes — Udemy lists a certificate on completion. It is a course certificate, not a formal qualification or university credit.
How long does 50 days of LeetCode - JavaScript Algorithms Coding Interview take?
Udemy lists it at 22.5 hours. It is self-paced, so that is the volume of material rather than a deadline — how long it actually takes depends on the hours you put in each week.
Is 50 days of LeetCode - JavaScript Algorithms Coding Interview suitable for beginners?
Udemy lists it at Intermediate level, so it assumes some grounding in the subject already. If you are starting from zero, a beginner-level course in the same topic is the better entry point.
What does 50 days of LeetCode - JavaScript Algorithms Coding Interview cover?
It is organised into 20 modules, starting with Microsoft Array Question: Container with most water (Medium) and going on to Google Array Question: Valid mountain array (Easy), Google Array Question: Boats to save people (Medium), Facebook Array Question: Move Zeroes (Easy), Amazon Array Question: Longest substring without repeating characters (Medium), among others. The full outline is on this page.
Who teaches 50 days of LeetCode - JavaScript Algorithms Coding Interview?
Interview Temple, as listed by Udemy.