Check if array has many matches

JavaScript, Array · Jul 11, 2021

Checks if an array has more than one value matching the given function.

const hasMany = (arr, fn) => arr.filter(fn).length > 1;
hasMany([1, 3], x => x % 2); // true
hasMany([1, 2], x => x % 2); // false

Written by Angelos Chalaris

I'm Angelos Chalaris, a JavaScript software engineer, based in Athens, Greece. The best snippets from my coding adventures are published here to help others learn to code.

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