JavaScript version
clamp.js
const clamp = (val, min = 0, max = 1) => Math.max(min, Math.min(max, val));
TypeScript version
clamp.ts
const clamp = (val: number, min: number = 0, max: number = 1): number => Math.max(min, Math.min(max, val));
Examples
examples.js
clamp(199, 10, 25); // 25