JS: Convert Decimal/Hexadecimal

By Xah Lee. Date: . Last updated: .

Decimal to Hexadecimal

(n).toString(16))

Return 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)

Return 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: Character, Code Unit, 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 Escape Sequence

JS String

  1. String Overview
  2. Template String
  3. Char, Code Unit, Code Point
  4. String Escape Sequence
  5. Unicode Escape Sequence
  6. String to Number
  7. Encode URL, Escape String
  8. Format Number
  9. Source Code Encoding
  10. Allowed Characters in Identifier
  11. String Object
  12. String.prototype

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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