When you need to find the highest value of several numbers, you can use JavaScriptâ€™s `Math.max`

method. The method accepts as many number arguments as you need to pass into it:

```
Math.max(20, 3, 10, 29);
// returns 29
```

Passing zero arguments will cause the method to return `-Infinity`

as value:

```
Math.max();
// returns -Infinity
```

Passing any other data type as arguments will cause the method to return `NaN`

:

```
Math.max("Hello", 1, 2);
// returns NaN
```

You can also mix the arguments for the method with negative numbers:

```
Math.max(7, -9, -25);
// returns 7
```

## Finding the maximum value in an array

When you need to find the maximum value in an array of numbers, you can use the `spread`

operator (`...`

) to pull out the numbers and pass them as arguments into the `Math.max`

method:

```
let scores = [7, 4, 6, 8];
let maxNumber = Math.max(...scores);
// maxNumber value is 8
```

Or you can also use the `reduce`

method to compare two elements at a time:

```
let scores = [7, 6, 5];
let max = scores.reduce(function(a, b) {
return Math.max(a, b);
});
```

The `reduce`

method above will perform two times:

- Compare between
`7`

and`6`

, returns`7`

- Compare between
`7`

and`5`

, returns`7`

And so the `max`

value is `7`