# Repeat a string

Concatenate a string with itself a given number of times.

Canonical: https://1loc.dev/string/repeat-a-string/
Version: 1.0.0
Runtime: JavaScript · Node.js 22 / modern browsers
Verification: Local fixtures; no external services
Updated: 2026-10-28

## Implementation

```javascript
function repeat({ text, times }) { return text.repeat(times); }
```

## Input

```json
{
  "text": "ab",
  "times": 3
}
```

## Expected output

```json
"ababab"
```

## Edge case

Input:
```json
{
  "text": "x",
  "times": 0
}
```
Output:
```json
""
```

## Limits

- The lab caps the result at 16,000 characters before allocating it.

The lab validates types and size before calling this function. Add equivalent validation at your own trust boundary.

## Source and license

Original: https://github.com/phuocng/1loc/blob/14b481cf60dff1620ab1bb99a43b1f68068cdd9b/contents/repeat-a-string.mdx
Author: Nguyen Huu Phuoc and original contributors
Contributors: chety
Source commit: 14b481cf60dff1620ab1bb99a43b1f68068cdd9b
Copyright (c) 2020 phuoc-ng
License: MIT — https://1loc.dev/licenses/
Maintainer: Oveyon
Modifications: Keeps String.prototype.repeat; caps the result size before allocation. Original MDX retained as inert source evidence.