JavaScript / ECMAScript

IPv6 Address in JS

Match full (non-compressed) IPv6 addresses written as eight colon-separated hextets.

Try it in the JS tester →

Pattern

regexJS
(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}   (flags: g)

JavaScript / ECMAScript code

jsJavaScript
const re = new RegExp("(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}", "g");
const input = "2001:0db8:85a3:0000:0000:8a2e:0370:7334";
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

Seven groups of 1–4 hex digits each followed by a colon, then a final hextet. Does not cover :: shorthand or IPv4-mapped addresses — use a more complex pattern if you need those forms.

Examples

Input

2001:0db8:85a3:0000:0000:8a2e:0370:7334

Matches

  • 2001:0db8:85a3:0000:0000:8a2e:0370:7334

Input

::1

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 IPv6 Address overview (all engines)