JavaScript / ECMAScript

MAC Address in JS

Match 48-bit MAC addresses written with colon or hyphen separators (e.g. 00:1A:2B:3C:4D:5E).

Try it in the JS tester →

Pattern

regexJS
(?:[0-9A-Fa-f]{2}[:\-]){5}[0-9A-Fa-f]{2}   (flags: g)

JavaScript / ECMAScript code

jsJavaScript
const re = new RegExp("(?:[0-9A-Fa-f]{2}[:\\-]){5}[0-9A-Fa-f]{2}", "g");
const input = "00:1A:2B:3C:4D:5E";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));

Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).

How the pattern works

Five pairs of hex digits each followed by : or -, then a final hex pair. Case-insensitive by character class to handle both upper and lower hex digits.

Examples

Input

00:1A:2B:3C:4D:5E

Matches

  • 00:1A:2B:3C:4D:5E

Input

AA-BB-CC-DD-EE-FF

Matches

  • AA-BB-CC-DD-EE-FF

Input

not a mac

No match

—

Same pattern, other engines

Python (re)

Supported

See how this pattern looks (and behaves) in Python's stdlib `re` module.

Go (RE2)

Supported

See how this pattern looks (and behaves) in Go's `regexp` package (RE2 engine).

← Back to MAC Address overview (all engines)