eLearn 75

Our flagship curated prep guide containing the 75 most essential topics, practice challenges, and recall quizzes for frontend engineers.

Week 1

7 steps · 0 completed

0% done

Day 1 · Lesson

Closures

Est. 20 min · intermediate

Day 2 · Coding Challenge

Implement debounce

Est. 15 min · core

Day 3 · Coding Challenge

Implement throttle

Est. 15 min · core

Day 4 · Lesson

Event Loop

Est. 30 min · intermediate

Day 5 · Coding Challenge

Implement curry

Est. 20 min · core

Day 6 · Recall Quiz

Javascript Concept Quiz

Est. 10 min · easy

Day 7 · Lesson

`this` Binding, call/apply/bind

Est. 20 min · intermediate

Week 2

6 steps · 0 completed

0% done

Day 8 · Lesson

Promises

Est. 25 min · intermediate

Day 9 · Coding Challenge

Implement Promise.all from scratch

Est. 25 min · stretch

Day 10 · Coding Challenge

Implement async retry with exponential backoff

Est. 25 min · stretch

Day 12 · Coding Challenge

Implement an event emitter

Est. 20 min · core

Day 13 · Coding Challenge

Implement a deep clone

Est. 20 min · core

Day 14 · Recall Quiz

React Concept Quiz

Est. 10 min · easy

Plan Progress

0%0 of 13 tasks complete

Resume: Step 1

eLearn 75

Our flagship curated prep guide containing the 75 most essential topics, practice challenges, and recall quizzes for frontend engineers.

Week 1

7 steps · 0 completed

0% done

Day 1 · Lesson

Closures

Est. 20 min · intermediate

Day 2 · Coding Challenge

Implement debounce

Est. 15 min · core

Day 3 · Coding Challenge

Implement throttle

Est. 15 min · core

Day 4 · Lesson

Event Loop

Est. 30 min · intermediate

Day 5 · Coding Challenge

Implement curry

Est. 20 min · core

Day 6 · Recall Quiz

Javascript Concept Quiz

Est. 10 min · easy

Day 7 · Lesson

`this` Binding, call/apply/bind

Est. 20 min · intermediate

Week 2

6 steps · 0 completed

0% done

Day 8 · Lesson

Promises

Est. 25 min · intermediate

Day 9 · Coding Challenge

Implement Promise.all from scratch

Est. 25 min · stretch

Day 10 · Coding Challenge

Implement async retry with exponential backoff

Est. 25 min · stretch

Day 12 · Coding Challenge

Implement an event emitter

Est. 20 min · core

Day 13 · Coding Challenge

Implement a deep clone

Est. 20 min · core

Day 14 · Recall Quiz

React Concept Quiz

Est. 10 min · easy

Plan Progress

0%0 of 13 tasks complete

Resume: Step 1