JS: Convert Decimal/Hexadecimal

By Xah Lee. Date: . Last updated: .

Decimal to Hexadecimal

(n).toString(16))

Returns a string. The string is hexadecimal representation of n. n is a integer.

// convert number 10 to hexadecimal
console.log ( (10).toString(16) === "a" ); // true

Hexadecimal to Decimal

parseInt( hexadecimal_string, 16)

Returns a integer number. The number is decimal representation of hexadecimal_string

// convert hexadecimal (string) to decimal
console.log ( parseInt("a", 16) === 10 ); // true

Character Topic

  1. JS: String Code Unit vs Code Point
  2. JS: Convert Character To/From Codepoint
  3. JS: String.fromCodePoint
  4. JS: String.fromCharCode
  5. JS: String.prototype.charAt
  6. JS: String.prototype.charCodeAt
  7. JS: String.prototype.codePointAt
  8. JS: Convert Decimal/Hexadecimal
  9. JS: Unicode Character Escape Sequence

String Topic

  1. JS: Source Code Encoding
  2. JS: String Code Unit vs Code Point
  3. JS: Unicode Character Escape Sequence
  4. JS: Allowed Characters in Identifier
  5. HTML: Allowed Characters in id Attribute
  6. HTML: Character Sets and Encoding
  7. HTML/XML Entity List

  1. JS: Template String
  2. JS: Convert String to Number
  3. JS: Encode URL, Escape String
  4. JS: Format Number
  5. JS: JSON

  1. JS: String Object
  2. JS: String.prototype
  3. JS: String Constructor

RegExp Topic

  1. JS: RegExp Tutorial
  2. JS: RegExp Syntax
  3. JS: Regex Find/Replace
  4. JS: RegExp Object
  5. JS: RegExp Constructor
  6. JS: RegExp.prototype
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