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The Archive

Every CodeShot challenge, ever. Practice, learn, and fill the gaps.

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41 questions
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May 15 JAVASCRIPT
JavaScript Try...Finally — Which Value is Returned?
Mid-Level →
May 14 JAVASCRIPT
JavaScript Map vs WeakMap — What is the Output?
Senior →
May 13 JAVASCRIPT
JavaScript Object Spread — What is the Final Output?
Junior →
May 12 JAVASCRIPT
JavaScript Object Deletion — What Happens Here?
Mid-Level →
May 11 JAVASCRIPT
JavaScript Promises — What is the Final Output?
Senior →
May 10 JAVASCRIPT
JavaScript Hoisting — Can You Call This Function?
Mid-Level →
May 09 JAVASCRIPT
JavaScript Arrays — What happens at a non-existent index?
Junior →
May 08 JAVASCRIPT
JavaScript Array.sort() — Why is the Order Wrong?
Mid-Level →
May 07 JAVASCRIPT
JavaScript Event Listeners — Spot the Memory Leak Bug
Senior →
May 06 JAVASCRIPT
JavaScript Sets — Can You Spot the Bug?
Mid-Level →
May 05 JAVASCRIPT
JavaScript Comparison Operators — Spot the Bug!
Junior →
May 04 JAVASCRIPT
JavaScript Async/Await — Spot the Bug!
Senior →
May 03 JAVASCRIPT
JavaScript Timers — Spot the Bug: setInterval vs setTimeout
Mid-Level →
May 02 JAVASCRIPT
JavaScript Array Map — Why is this console.log ignored?
Junior →
May 01 JAVASCRIPT
JavaScript Type Coercion — What does this output?
Junior →
Apr 30 JAVASCRIPT
JavaScript Closures — What Gets Logged?
Senior →
Apr 29 JAVASCRIPT
JavaScript Array.indexOf — What does this print?
Mid-Level →
Apr 28 JAVASCRIPT
JavaScript Truthy & Falsy — What is the Output?
Junior →
Apr 27 JAVASCRIPT
JavaScript Object.freeze — What gets logged?
Senior →
Apr 26 JAVASCRIPT
JavaScript Type Coercion — What does this output?
Mid-Level →
Apr 25 JAVASCRIPT
JavaScript Type Coercion — What does this print?
Junior →
Apr 24 JAVASCRIPT
JS Generator Function - What does next().value print twice?
Senior →
Apr 23 JAVASCRIPT
JavaScript Map Size
Mid-Level →
Apr 22 JAVASCRIPT
JavaScript Nullish Coalescing
Senior →
Apr 21 JAVASCRIPT
JavaScript Array Method - Unraveling Depth
Mid-Level →
Apr 20 JAVASCRIPT
JS Closure - What gets logged?
Senior →
Apr 19 JAVASCRIPT
javascript Variable Shadowing
Mid-Level →
Apr 18 JAVASCRIPT
JavaScript String Concatenation
Junior →
Apr 17 JAVASCRIPT
JavaScript Default Parameters
Mid-Level →
Apr 16 JAVASCRIPT
JavaScript Equality - What's the Default Value?
Mid-Level →
Apr 15 JAVASCRIPT
JavaScript Closures - What gets logged in a closure?
Senior →
Apr 14 JAVASCRIPT
JavaScript Truthy Values
Junior →
Apr 13 JAVASCRIPT
JS Conditional Operators
Mid-Level →
Apr 12 JAVASCRIPT
JavaScript NaN Type
Senior →
Apr 11 JAVASCRIPT
JavaScript Mutable Reference Error
Mid-Level →
Apr 10 JAVASCRIPT
JavaScript Giant Numbers
Senior →
Apr 09 JAVASCRIPT
JavaScript + Empty Array + Object
Mid-Level →
Apr 08 JAVASCRIPT
JavaScript Array Concatenation
Junior →
Apr 07 JAVASCRIPT
JavaScript Timers: What GetsLogged?
Senior →
Apr 06 JAVASCRIPT
JavaScript Float Precision Issue
Mid-Level →
Apr 05 JAVASCRIPT
JavaScript Null Type Inference
Mid-Level →

Master JavaScript, Python, SQL, and CSS

The CodeShot Archive is a curated collection of real-world interview questions and logic puzzles. Instead of scrolling through endless theory, you can jump straight into the code that matters.

JavaScript Fundamentals

Deep dive into closures, hoisting, the event loop, and tricky coercion bugs. Our JavaScript archive covers everything from ES6+ features to legacy browser quirks.

Python Logic

Practice list comprehensions, decorators, dunder methods, and Pythonic patterns. Perfect for data scientists and backend engineers alike.

SQL Mastery

Master complex JOINs, window functions, and aggregation logic. Solve the kind of data puzzles you'll actually face in technical interviews.

Modern CSS

Test your knowledge of Flexbox, Grid, specificity, and modern CSS properties. Build a visual intuition for how layouts really work.

Why Use the Archive?

  • ✓ Interview Readiness: Many of these questions are adapted from real technical interviews at top tech companies.
  • ✓ Active Recall: Instead of reading, you're solving. This is the most effective way to retain programming knowledge.
  • ✓ Detailed Explanations: Every archived question comes with a breakdown of why the answer is correct.