See Easing Functions Cheat Sheet

function easeInOutCubic(x: number): number {
  return x < 0.5 ? 4 * x * x * x : 1 - Math.pow(-2 * x + 2, 3) / 2;
}

function easeOutElastic(x: number): number {
  const c4 = (2 * Math.PI) / 3;
        return x === 0
        ? 0
        : x === 1
        ? 1
        : Math.pow(2, -10 * x) * Math.sin((x * 10 - 0.75) * c4) + 1;
}

function easeInCirc(x: number): number {
  return 1 - Math.sqrt(1 - Math.pow(x, 2));
}