Exercise 20: Create Object from Array of Pairs

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Problem Statement

Function `fromPairs(pairs)` banao jo array of [key, value] pairs se object create kare. Example: fromPairs([["a", 1], ["b", 2]]) => {a: 1, b: 2}

Sample Output:

fromPairs([["a", 1], ["b", 2]]) => {a: 1, b: 2}
fromPairs([["x", "hello"]]) => {x: "hello"}

Solution

const fromPairs = (pairs) => {
  return pairs.reduce((acc, [key, value]) => {
    acc[key] = value;
    return acc;
  }, {});
};

Explanation

Overall Goal:

Array of pairs se object create karna.

Real world:

Data transformation: pairs to object.
Array processing: pair conversion.

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Exercise 20: Create Object from Array of Pairs

Problem Statement

Solution

Explanation

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