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doc: adding example to Buffer.isBuffer method update buffer.md file #36233

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doc: adding example to Buffer.isBuffer method update buffer.md file #36233

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doc : adding example to Buffer.isBuffer method update buffer.md file
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19 changes: 19 additions & 0 deletions doc/api/buffer.md
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Original file line number Diff line number Diff line change
Expand Up @@ -743,6 +743,25 @@ added: v0.1.101

Returns `true` if `obj` is a `Buffer`, `false` otherwise.

```js

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const buf1 = Buffer.alloc(10);
console.log(Buffer.isBuffer(buf1));
// Prints: true

const buf2 = Buffer.from('this is a test');
console.log(Buffer.isBuffer(buf2));
// Prints: true

const str = 'a string';
console.log(Buffer.isBuffer(str));
// Prints: false

const arr = [];
console.log(Buffer.isBuffer(arr));
// Prints: false

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```
### Static method: `Buffer.isEncoding(encoding)`
<!-- YAML
added: v0.9.1
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