# Rounding

You likely know about rounding from school, but in JavaScript, we have three flavors.

### Math.round()

This is probably the one you're most familiar with. It takes any number where the fractional part is below `.5`

and rounds down, and takes any value equal to or greater than `.5`

and rounds up.

```
Math.round(0.3);
// returns 0
Math.round(0.5);
// returns 1
Math.round(0.7);
// returns 1
```

This might not always be the effect you want though. So there are two other falvors.

### Math.floor()

This will always round down to the nearest whole number, no matter the fractional amount. It brings the values to the 'floor', is an easy way to remember it.

```
Math.floor(0.1);
// returns 0
Math.floor(0.9);
// returns 0
```

### Math.ceil()

Opposite to `Math.floor()`

, `Math.ceil()`

will always round a number up to the nearest whole number. It brings the value to the "ceiling".

```
Math.ceil(0.1);
// returns 1
Math.ceil(0.9);
// returns 1
```

There are no obvious times to recommend when to use one or the other, but it's important to have these in your arsenal for when you might need them!

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