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apostololeg/range-map.js

Created March 24, 2020 11:57
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range-map.js
// Thx to: https://gist.github.com/xposedbones/75ebaef3c10060a3ee3b246166caab56#gistcomment-2951694
// map(4, ...[0, 20], ...[.3, 0]) // .24
const map = (value, x1, y1, x2, y2) => (value - x1) * (y2 - x2) / (y1 - x1) + x2;
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