Q133- Write a function that takes an array of numbers and returns a new array with only unique values.

You can remove duplicates in JavaScript using either the Set object or filtering logic.

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✅ Solution 1 — Using Set (Simplest Way)

function getUniqueValues(arr) {
  return [...new Set(arr)];
}

// Example:
console.log(getUniqueValues([1, 2, 2, 3, 4, 4, 5]));

Output:

[1, 2, 3, 4, 5]

🟢 Set automatically stores only unique values.

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✅ Solution 2 — Using filter() and indexOf()

function getUniqueValues(arr) {
  return arr.filter((value, index) => arr.indexOf(value) === index);
}

// Example:
console.log(getUniqueValues([1, 2, 2, 3, 4, 4, 5]));

Output:

[1, 2, 3, 4, 5]

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🧩 Explanation:

• indexOf(value) returns the first index where the value appears.
• If the current index matches that first index → it’s unique (first occurrence).

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🧠 In Short:

Use [...new Set(arr)] to quickly get all unique numbers from an array.