Node.js Buffer.allocUnsafe() Method
Example
Create a 15 bytes buffer object:
var buf = Buffer.allocUnsafe(15);
console.log(buf);
Run example »
Definition and Usage
The Buffer.allocUnsafe() method creates a new buffer object of the specified size.
This method differs from the Buffer.alloc() method because it creates a not-pre-filled buffer, and it may contain information from older buffers. That is why it is called unsafe.
To prevent this buffer from containing old data, you can use the
Buffer.fill() method to pre-fill the buffer.
Syntax
Buffer.allocUnsafe(size);
Parameter Values
| Parameter | Description |
|---|---|
| size | Required. Specifies the size of the buffer |
Technical Details
| Return Value: | None |
|---|---|
| Node.js Version: | 5.10.0 |
More Examples
Example
Empty an unsafe buffer:
var buf = Buffer.allocUnsafe(15);
console.log(buf);
//Empty the buffer:
buf.fill(0);
console.log(buf);
Run example »
