JavaScript Repeat
repeat() builds a new string by concatenating a given number of copies of the original. Pass 0 for an empty string; a negative count throws a RangeError.
Syntax
str.repeat(count)Examples
| Input | Arguments | Output |
|---|---|---|
| "ab" | 3 | "ababab" |
Gotchas
- A negative or infinite count throws a RangeError.
Try it live
Type your input and see Repeat transform it instantly.
Want to go further? Chain Repeat with other functions in the visual Playground — pipe one output into the next and watch your data transform.