You can find here how to convert between bin, dec, hex values in JavaScript programming language with examples.

## Bin to Dec in JavaScript

Function `parseInt()`

parses a string argument and returns an integer of the specified radix (the base in mathematical numeral systems). [reference]

#### Example

How to convert value 11111111 in **bin to dec in JavaScript**.

var dec = parseInt("11111111", 2);

Output: 255

## Dec to Bin in JavaScript

Function `toString()`

returns a string representing the specified Number object. [reference]

#### Example

How to convert value 185 in **dec to bin in JavaScript**.

var bin = (185).toString(2);

Output: "10111001"

## Bin to Hex in JavaScript

Function `parseInt()`

parses a string argument and returns an integer of the specified radix (the base in mathematical numeral systems). [reference]

Function `toString()`

returns a string representing the specified Number object. [reference]

#### Example

How to convert value 101011 in **bin to hex in JavaScript**.

var hex = parseInt("101011", 2).toString(16);

Output: "2b"

## Hex to Bin in JavaScript

Function `parseInt()`

parses a string argument and returns an integer of the specified radix (the base in mathematical numeral systems). [reference]

Function `toString()`

returns a string representing the specified Number object. [reference]

#### Example

How to convert value 3ef in **hex to bin in JavaScript**

var bin = parseInt("3ef", 16).toString(2);

Output: "1111101111"

## Dec to Hex in JavaScript

Function `toString()`

returns a string representing the specified Number object. [reference]

#### Example

How to convert value 185 in **dec to hex in JavaScript**.

var hex = (185).toString(16);

Output: "b9"

## Hex to Dec in JavaScript

Function `parseInt()`

parses a string argument and returns an integer of the specified radix (the base in mathematical numeral systems).[reference]

#### Example

How to convert value 3ef in **hex to dec in JavaScript**.

var dec = parseInt("3ef", 16);

Output: 1007