bcc05a9a6e
Updated all By snippets to have matching behavior, consistent argument naming and added countBy as per #100.
470 B
470 B
minBy
Returns the minimum value of an array, after mapping each element to a value using the provided function.
Use Array.map() to map each element to the value returned by fn, Math.min() to get the maximum value.
const minBy = (arr, fn) =>
Math.min(...arr.map(typeof fn === 'function' ? fn : val => val[fn]));
minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], o => o.n); // 8
minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], 'n'); // 8