Comprehensive Array and Object Array Deduplication in JavaScript
Basic Array Deduplication Using Set
For primitive-value arrays, Set provides an elegant and native solution:
const input = ['Zhang San', 'Zhang San', 'Three Zhang San'];
const uniqueSet = new Set(input);
console.log([...uniqueSet]); // ['Zhang San', 'Three Zhang San']
Object Array Deduplication via reduce()
For arrays of objects where uniquen ...
Posted on Wed, 20 May 2026 16:54:32 +0000 by FarhanKhalaf