isArrayBuffer()

isArrayBuffer(value): value is ArrayBuffer

Checks if a value is an ArrayBuffer.

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Parameters

value: unknown

The value to check.

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Returns: value is ArrayBuffer

true if the value is an ArrayBuffer, false otherwise.

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Since

2.0.0

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Example

isArrayBuffer(new ArrayBuffer(8)); // => true
isArrayBuffer([]);                 // => false

// Use instead
value instanceof ArrayBuffer;      // => true

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How it works?

Type guard that checks if a value is an ArrayBuffer.

Type Narrowing

Common Checks

Value	Result
new ArrayBuffer(8)	true
new Uint8Array(8).buffer	true
new Uint8Array(8)	false
Buffer.alloc(8)	false
[]	false

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Use Cases

Handle binary data 📌

Verify if a value is a raw binary data buffer. Critical for low-level data manipulation and file processing.

#handle#binary#ArrayBuffer#data#files#low-level

if (isArrayBuffer(content)) {
  const view = new Uint8Array(content);
  // process binary data
}