JavaScript - 找出一个数字均匀分配到另一个数字的次数

Question

Is there a simple way to find how many times a number goes into another number evenly in JavaScript?

Say 11 divided by 4 --- I know 4 goes into 11 2 times evenly

I have this code but I thought there was a simpler way that I maybe forgetting?

<script>
a = 11;
b = 4;

i = a % b;
i2 = a - i;
solution = i2 / b;
document.write(solution); // 2
</script>

Answer 1

What about...

Math.floor(11 / 4);

If you're wanting to handle negative numbers (thanks Ted Hopp ), you could use ~~ , |0 or any other bitwise trick that will treat its operand as a 32 bit signed integer. Keep in mind, besides this being confusing, it won't handle a number over 32bits.

~~(11 / 4);

Answer 2

You can use this trick:

(a / b) >> 0

Shifting by 0 truncates the fractional part. This will always round toward 0, which Math.floor will not do with negative numbers.