mirror of
https://github.com/oven-sh/bun
synced 2026-02-10 10:58:56 +00:00
26 lines
738 B
Plaintext
26 lines
738 B
Plaintext
---
|
|
title: Detect when code is executed with Bun
|
|
sidebarTitle: Detect Bun
|
|
mode: center
|
|
---
|
|
|
|
The recommended way to conditionally detect when code is being executed with `bun` is to check for the existence of the `Bun` global.
|
|
|
|
This is similar to how you'd check for the existence of the `window` variable to detect when code is being executed in a browser.
|
|
|
|
```ts
|
|
if (typeof Bun !== "undefined") {
|
|
// this code will only run when the file is run with Bun
|
|
}
|
|
```
|
|
|
|
---
|
|
|
|
In TypeScript environments, the previous approach will result in a type error unless `@types/bun` is installed. To avoid this, you can check `process.versions` instead.
|
|
|
|
```ts
|
|
if (process.versions.bun) {
|
|
// this code will only run when the file is run with Bun
|
|
}
|
|
```
|