Function quantiseEvery

Rounds v by every. Middle values are rounded up by default.

quantiseEvery(11, 10);  // 10
quantiseEvery(25, 10);  // 30
quantiseEvery(0, 10);   // 0
quantiseEvery(4, 10);   // 0
quantiseEvery(100, 10); // 100

Also works with decimals

quantiseEvery(1.123, 0.1); // 1.1
quantiseEvery(1.21, 0.1);  // 1.2

quantiseEvery(v, every, middleRoundsUp?): number
Parameters
- v: number
  Value to quantise
- every: number
  Number to quantise to
- middleRoundsUp: boolean = true
  If true (default), the exact middle rounds up to next step.
Returns number