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30-seconds-of-code/snippets/any.md
2020-09-15 21:52:00 +03:00

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title, tags
title tags
any array,function,beginner

Returns true if the provided predicate function returns true for at least one element in a collection, false otherwise.

  • Use Array.prototype.some() to test if any elements in the collection return true based on fn.
  • Omit the second argument, fn, to use Boolean as a default.
const any = (arr, fn = Boolean) => arr.some(fn);
any([0, 1, 2, 0], x => x >= 2); // true
any([0, 0, 1, 0]); // true