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Generate Number Ranges in JavaScript

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Release: 2024-10-12 06:23:02
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Generate Number Ranges in JavaScript

Generate an array of integers and fill it with consecutive values that begin with the start number and end with the end number inclusive.

Solution

function range(start, end) {
  const rangeArray = Array.from(
    {length: Math.ceil(end - start + 1)}, (_, i) => start + i);

  return rangeArray;
}

console.log(range(10, 23));
console.log(range(5, 12));
console.log(range(89, 93));
console.log(range(42, 51));
console.log(range(73, 80));
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> [10, 11, 12, 13, 14, 15,16, 17, 18, 19, 20, 21,22, 23]
> [5,  6,  7,  8, 9, 10, 11, 12]
> [89, 90, 91, 92, 93]
> [42, 43, 44, 45, 46, 47, 48, 49, 50, 51]
> [73, 74, 75, 76, 77, 78, 79, 80]
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