JavaScript Match
match() runs a regular expression against the string and returns the matches (or null when nothing matches). It is the entry point to pattern extraction — capturing groups, digits, words, anything a regex can describe.
Syntax
str.match(regex)Examples
| Input | Arguments | Output |
|---|---|---|
| "a1b2c3" | "[0-9]" | ["1"] |
| ↳ Without the /g flag, only the first match is returned. | ||
Gotchas
- Returns null (not []) when there is no match — check before iterating.
Try it live
Type your input and see Match transform it instantly.
Want to go further? Chain Match with other functions in the visual Playground — pipe one output into the next and watch your data transform.