How Do I Convert Between Decimal and Hexadecimal in JavaScript?

Decimal to Hexadecimal Conversion in JavaScript

Converting decimal values to hexadecimal equivalents is a common task in programming. In JavaScript, this can be done with ease using the toString(base) method.

Conversion to Hexadecimal String

To convert a decimal number to its hexadecimal string representation, use the following syntax:

hexString = yourNumber.toString(16);

For example, to convert the decimal number 10 into hexadecimal, we would write:

let hexString = 10.toString(16);

This will assign the string "a" to the hexString variable, as "a" is the hexadecimal representation of 10.

Conversion from Hexadecimal String

To convert a hexadecimal string back to its decimal equivalent, use the parseInt(string, base) function:

yourNumber = parseInt(hexString, 16);

For example, to convert the hexadecimal string "a" to its decimal equivalent, we would write:

let yourNumber = parseInt("a", 16);

This will assign the value 10 to the yourNumber variable.

Remember that the base parameter in both methods specifies the base of the number being converted. For hexadecimal, always set the base to 16.

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