# Math.max()

The `Math.max()` function returns the largest of the zero or more numbers given as input parameters, or `NaN` if any parameter isn't a number and can't be converted into one.

## Syntax

``````Math.max()
Math.max(value0)
Math.max(value0, value1)
Math.max(value0, value1, ... , valueN)
``````

### Parameters

`value1, value2, ...`

Zero or more numbers among which the largest value will be selected and returned.

### Return value

The largest of the given numbers. If any one or more of the parameters cannot be converted into a number, `NaN` is returned. The result is -`Infinity` if no parameters are provided.

## Description

Because `max()` is a static method of `Math`, you always use it as `Math.max()`, rather than as a method of a `Math` object you created (`Math` is not a constructor).

If no arguments are given, the result is -`Infinity`.

If at least one of arguments cannot be converted to a number, the result is `NaN`.

## Examples

### Using Math.max()

``````Math.max(10, 20);   //  20
Math.max(-10, -20); // -10
Math.max(-10, 20);  //  20
``````

### Getting the maximum element of an array

`Array.reduce()` can be used to find the maximum element in a numeric array, by comparing each value:

``````var arr = [1,2,3];
var max = arr.reduce(function(a, b) {
return Math.max(a, b);
}, 0);
``````

The following function uses `Function.prototype.apply()` to get the maximum of an array. `getMaxOfArray([1, 2, 3])` is equivalent to `Math.max(1, 2, 3)`, but you can use `getMaxOfArray()` on programmatically constructed arrays. This should only be used for arrays with relatively few elements.

``````function getMaxOfArray(numArray) {
return Math.max.apply(null, numArray);
}
``````

The new spread operator is a shorter way of writing the `apply` solution to get the maximum of an array:

``````var arr = [1, 2, 3];
var max = Math.max(...arr);
``````

However, both spread (`...`) and `apply` will either fail or return the wrong result if the array has too many elements, because they try to pass the array elements as function parameters. See Using apply and built-in functions for more details. The `reduce` solution does not have this problem.

## Browser compatibility

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