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Allocate a buffer having a specified number of bytes.
To use in Observable,
allocUnsafe = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/buffer-alloc-unsafe@umd/browser.js' )To vendor stdlib functionality and avoid installing dependency trees for Node.js, you can use the UMD server build:
var allocUnsafe = require( 'path/to/vendor/umd/buffer-alloc-unsafe/index.js' )To include the bundle in a webpage,
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/buffer-alloc-unsafe@umd/browser.js"></script>If no recognized module system is present, access bundle contents via the global scope:
<script type="text/javascript">
(function () {
window.allocUnsafe;
})();
</script>Unsafely allocates a buffer having a specified number of bytes.
var buf = allocUnsafe( 10 );
// returns <Buffer>- The underlying memory of returned
Bufferinstances is not initialized. Memory contents are unknown and may contain sensitive data. - When the
sizeis less than half the pool size (specified on theBufferconstructor in modern Node.js environments), memory is allocated from theBufferpool for faster allocation of newBufferinstances.
<!DOCTYPE html>
<html lang="en">
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/buffer-alloc-unsafe@umd/browser.js"></script>
<script type="text/javascript">
(function () {
var buf;
var i;
// Repeatedly unsafely allocate memory and inspect the buffer contents...
for ( i = 0; i < 100; i++ ) {
buf = allocUnsafe( 100 );
console.log( buf.toString() );
}
})();
</script>
</body>
</html>@stdlib/buffer-ctor: Buffer.@stdlib/buffer-from-array: allocate a buffer using an octet array.@stdlib/buffer-from-arraybuffer: allocate a buffer from an ArrayBuffer.@stdlib/buffer-from-buffer: copy buffer data to a new Buffer instance.@stdlib/buffer-from-string: allocate a buffer containing a provided string.
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
See LICENSE.
Copyright © 2016-2025. The Stdlib Authors.
