45 lines
739 B
Markdown
45 lines
739 B
Markdown
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# is-gif [](https://travis-ci.com/sindresorhus/is-gif)
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> Check if a Buffer/Uint8Array is a [GIF](https://en.wikipedia.org/wiki/Graphics_Interchange_Format) image
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## Install
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```
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$ npm install is-gif
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```
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## Usage
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```js
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const readChunk = require('read-chunk');
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const isGif = require('is-gif');
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const buffer = readChunk.sync('unicorn.gif', 0, 3);
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isGif(buffer);
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//=> true
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```
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## API
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### isGif(input)
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#### input
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Type: `Buffer` `Uint8Array`
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It only needs the first 3 bytes.
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## Related
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- [file-type](https://github.com/sindresorhus/file-type) - Detect the file type of a Buffer/Uint8Array
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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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