Q. 1 Find unique value
n this tutorial, we’ll *learn how to find unique values in a JavaScript array* — step by step, with clear code examples and best-practices you can apply right away.
What you’ll get from this video:
✅ Why duplicates happen in arrays
✅ Two or more methods to extract unique items (using Set, filter, etc)
✅ Performance considerations & when to use which method
✅ A full example you can copy and use in your projects
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