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maxN javascript Code Snippet in 2022

arraymathintermediate

Last Updated: 26 November 2022

Returns the n maximum elements from the provided array.

  • Use Array.prototype.sort() combined with the spread operator (...) to create a shallow clone of the array and sort it in descending order.
  • Use Array.prototype.slice() to get the specified number of elements.
  • Omit the second argument, n, to get a one-element array.
  • If n is greater than or equal to the provided array's length, then return the original array (sorted in descending order).
const maxN = (arr, n = 1) => [...arr].sort((a, b) => b - a).slice(0, n);
maxN([1, 2, 3]); // [3] maxN([1, 2, 3], 2); // [3, 2]

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