Javascript Map range of number to another range

map.js

Number.prototype.map = function (in_min, in_max, out_min, out_max) {
  return (this - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}

map.ts

export function clamp(input: number, min: number, max: number): number {
  return input < min ? min : input > max ? max : input;
}

export function map(current: number, in_min: number, in_max: number, out_min: number, out_max: number): number {
  const mapped: number = ((current - in_min) * (out_max - out_min)) / (in_max - in_min) + out_min;
  return clamp(mapped, out_min, out_max);
}

@mekb-turtle What does lerp mean?

Linear Interpolation