Loops & Arrays – JS Tasks

Small JavaScript practice tasks covering array methods, iteration, filtering, sorting, shuffling, and deduplication.
Open index.html and check the browser console to see outputs from each task.

What’s inside

• A sub task in loops & arrays
  • sumOfTripledEvens(array) – kept original logic as written in the exercise code notes.
• Camelize (two versions)
  • camelize(str) – manual split/capitalize/join
  • camelizeAlt(str) – alternative with map
• filterRange (non-mutating)
  • filterRange(arr, a, b) – returns values in [a, b] without modifying the original array (uses a separate result_filterRange array)
• filterRangeInPlace (mutating)
  • filterRangeInPlace(arr, a, b) – removes values outside [a, b] from the same array
• Sort (decreasing)
  • sortDecreasingOrder(arr) – sorts numbers descending
• Copy & sort
  • copySorted(arr) – returns a sorted copy using modern toSorted() (original array remains unchanged)
• Shuffle
  • shuffleArray(array) – simple sort(() => Math.random() - 0.5) demo
• unique
  • unique(arr) – returns a new array with duplicates removed (preserves first occurrence order)

How to run

1. Clone or download the repo.
2. Open index.html in your browser.
3. Open the DevTools Console to see outputs.

Note: This project uses modern JavaScript features like Array.prototype.toSorted(). Use a recent browser (Chrome/Edge/Firefox/Safari) for best compatibility.

File structure