Division by zero produces Infinity, not an error:
console.log(10 / 0) // Infinity
console.log(-10 / 0) // -Infinity
You can check with Number.isFinite():
Number.isFinite(100) // true
Number.isFinite(Infinity) // false
Infinity propagates through calculations. Any math with Infinity gives Infinity or NaN. Check for it before continuing calculations if division by zero is possible in your code.