mirror of
https://github.com/oven-sh/bun
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24 lines
707 B
Markdown
24 lines
707 B
Markdown
---
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name: Detect when code is executed with Bun
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---
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The recommended way to conditionally detect when code is being executed with `bun` is to check for the existence of the `Bun` global.
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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.
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```ts
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if (typeof Bun !== "undefined") {
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// this code will only run when the file is run with Bun
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}
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```
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---
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In TypeScript environments, the previous approach will result in a type error unless `bun-types` is globally installed. To avoid this, you can check `process.versions` instead.
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```ts
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if (process.versions.bun) {
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// this code will only run when the file is run with Bun
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}
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```
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