How to Sort an Array in JavaScript | sort() Method Explained with Objects & Numbers
How to sort an array in JavaScript – Learn everything from basic number sorting to advanced custom logic using the JavaScript sort() method. This beginner-friendly tutorial covers how to sort an array in JavaScript, including numbers, strings, and objects — plus engine-specific behaviors and edge cases explained with live coding.
🔍 What You’ll Learn (with keyword reinforcement):
How to sort an array in JavaScript using the sort() method
Why number sorting fails and how to fix it with compare functions
How to sort an object in an array JavaScript (e.g., by name or age)
Sorting case-insensitive strings with .localeCompare()
JavaScript engine differences (Timsort, Quicksort, MergeSort)
Writing custom sorting functions for arrays in JavaScript
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⏳ Timestamps:
00:00 - Introduction to JavaScript Sorting
00:28 - How sort() Works in JavaScript
00:54 - Why Number Sorting Fails (Common Mistake)
02:20 - Fixing Number Sorting with Compare Functions
02:53 Rules for custom sorting functions
04:21 - Sorting Objects in JavaScript (Practical Example)
05:00 - Case-Insensitive String Sorting with .localeCompare()
06:09 - JavaScript’s Hidden Sorting Algorithms (Timsort, Quicksort, Merge Sort)
06:54 - Custom Sorting Logic (Sorting by Length, Custom Rules)
14:00 - Wrapping Up & Next Steps
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