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Javascript360.org

Everything you need to ace your upcoming Frontend interview.

Still telling yourself you'll get to Data Structures later?

Later is usually the interview. It's the one round you can't bluff β€” and the one most devs quietly keep putting off. 200 problems, video walkthroughs built right in, your progress saved as you go.

Learning pathFrontend Interview Preparation PlanAn actionable, phase-by-phase plan to get interview-ready as a Frontend / UI Engineer.37 topic cards9 phases~14 weeks at standard paceOpen the plan β†’
Your two-track plan

One focused hour a day is how the dream job happens.

The offer you've been working toward doesn't come from luck. It comes from practice and persistence, one problem and one topic at a time.

Problem-solving path

Blind-75 Must Do Leetcode

The most-asked LeetCode problems, scheduled pattern by pattern so each one builds on the last.

Problems
76
Patterns
17
Standard pace
~10 wks
  • 19 Easy Β· 51 Medium Β· 6 Hard, each with a target date
  • Board, table, timeline and weekly milestones
  • Your own notes beside every problem

Learning path

Frontend Interview Prep Plan

An actionable, phase-by-phase plan to get interview-ready as a Frontend / UI Engineer.

Topic cards
37
Phases
9
Standard pace
~14 wks
  • HTML, CSS, Javascript, React, performance, system design, DSA and behavioral
  • Action items, curated resources and practice questions on every card
  • Progress tracker that tells you if you’re on schedule
🎬 New β€” video built in

Striver's SDE Sheet

Top coding interview problems, organized day by day β€” track what you've solved as you go.

200Interview problems
153Video walkthroughs
31Days, one clear plan
100%Free, tracked locally
▢️

Watch without leaving the page

Every walkthrough plays right there in the sheet's own player β€” seek, speed, fullscreen β€” no tab-switching to YouTube and back.

βœ…

Pick up where you left off

A persistent player bar tracks the problem you're on across every page β€” saved in your browser, no account needed.

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The whole sheet, day by day

All 200 problems in Striver's own order, grouped by day, with a checkbox and a live progress bar for each one.

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Read the write-up too

A separate button on every problem opens its article β€” this site's own where we have one, TakeUForward's otherwise.

Opens right here β€” one tap, no new page.
πŸŽ“ New Course

Javascript Deep Dive

A guided, ground-up Javascript course for developers who want to actually understand the language β€” not just copy-paste their way through it. Work through it in order and you'll go from "what is a value?" to shipping your own tiny interpreter, a platform game, and a full-stack app.

22Chapters
14+Hours, self-paced
5Real, guided projects
100%Free, no sign-up
🧠

Fundamentals to full-stack

Start at values and operators, and work up through closures, prototypes, async code, and Node.js β€” nothing assumed, nothing skipped.

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Build real things, not just read

Five hands-on projects β€” a delivery robot, a tiny programming language, a platform game, a pixel art editor, and a full-stack app.

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Progress you can actually see

Check off chapters as you finish them and watch a real progress bar fill up β€” saved locally, so you always know where you left off.

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A certificate when you finish

Complete all 22 chapters and unlock a downloadable certificate of completion β€” proof you put in the work.

Start learning free β†’No account needed. Pick up right where you left off.

Designed for Javascript developers

This website includes premium quality of javascript content for software engineers of all levels. Whether you want to refresh your knowledge or start over, Javascript360.org has got you covered.

Master Javascript skills

The aim is to build your understanding of Javascript piece by piece, from core principles like variables, data types, conditionals, and functions through advanced topics including loops, and DOM scripting.

Support high quality editorials

Javascript360.org can be extended while reusing the same header and footer. Feel free to add new resources/note/tutorials/courses.
Explore the community

🌟 Join the Javascript360 community

Connect with fellow JS developers, and get free interview prep, React challenges, and DSA guides.

Join on WhatsApp β†’