Javascript `Math.max()`

is used to find the largest or max number among a series of numbers. `max()`

accepts variable number of arguments.

This means that you can pass any number of arguments to `max()`

.

As per official MDN docs,

The

`Math.max()`

function returns the largest of the zero or more numbers given as input parameters.

**Syntax**

Syntax of

`max()`

function ismax(num1, num2, num3, …..)

`max()`

is a static function and belongs to javascript `Math`

object and that is why it is invoked as `Math.max()`

.

**max() return values**

`max()`

returns different value as per the arguments passed to it.

1. Maximum value when more than one numbers are passed.

2. `NaN`

when an argument cannot be converted to a number such as a string.

3. `-Infinity`

when no arguments are passed.

**max() examples**

Following are some of the usage examples of `max()`

with different input arguments.

let max = Math.max(12,56,9,0,35); console.log('Max with all positive numbers: ' + max); max = Math.max(-12,-56,-9,-1,-35); console.log('Max with all negative numbers: ' + max); max = Math.max(12,56,9,0,'a'); console.log('Max with one invalid argument: ' + max); max = Math.max(); console.log('Max with no arguments: ' + max);

This prints

Max with all positive numbers: 56

Max with all negative numbers: -1

Max with one invalid argument: NaN

Max with no arguments: -Infinity

In case of negative numbers, `max()`

returns the number having smallest numeric value.

**max() with arrays**

`Math.max()`

can be used to find maximum element of a **javascript array**. But you cannot directly pass an array as argument to

`max()`

as it will return `NaN`

.For using array with

`max()`

, you need to destructure it using **javascript spread operator**, which extracts individual elements from the array.

spread operator is used by placing three dots(

**…**) before the array

**Example,**

const arr = [12,56,9,0,35] let max = Math.max(...arr); console.log('Max with an array: ' + max);

which prints

Max with an array: 56

As with numbers, if the array contains an element that cannot be converted to a number, then the result is `NaN`

.

Also, if the array is empty, the `max()`

will return `-Infinity`

.

**Browser Compatibility**

Below is the compatibility table of `Math.max()`

for different browser versions.

Browser | Version |
---|---|

Chrome | 1 |

Firefox | 1 |

Safari | 1 |

IE | 3 |

Opera | 3 |

Edge | 12 |