40 lines
1022 B
Markdown
40 lines
1022 B
Markdown
# is64bit
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> Check whether operating system CPU architecture is 64-bit or 32-bit
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This package also works in the browser. It can be useful to serve the correct binary for download.
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On Node.js, [`process.arch` / `os.arch()`](https://nodejs.org/api/process.html#processarch) is generally not useful as it returns the CPU architecture for which the Node.js binary was compiled, not the actual system architecture.
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## Install
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```sh
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npm install is64bit
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```
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## Usage
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```js
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import {is64bit} from 'is64bit';
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// On ARM64 macOS
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console.log(await is64bit());
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//=> true
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```
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## API
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### is64bit()
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Returns a `Promise<boolean>` for whether the operating system CPU architecture is 64-bit.
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### is64bitSync()
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Returns a `boolean` for whether the operating system CPU architecture is 64-bit.
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**Note**: Prefer the async version for browser or cross-platform usage as it has a more reliable check.
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## Related
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- [system-architecture](https://github.com/sindresorhus/system-architecture) - Get the operating system CPU architecture
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