Nodejs buffers: Difference between revisions
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= Basics = | |||
<blockquote> | |||
Buffers are fixed size, reserved sections of memory.<br> | |||
You can <code>alloc()</code> the entire section of memory (filling it with 0s)<br> | |||
Or you can <code>allocUnsafe</code> which simply reserves the memory (faster). | |||
By default, buffers are are stored as a UTF-8 array of bytes.<br> | |||
<code>buffer.toString()</code> converts the buffer to a UTF-8 string. | |||
<syntaxhighlight lang="javascript"> | <syntaxhighlight lang="javascript"> | ||
const | import { Buffer } from 'buffer'; | ||
const buf = Buffer.alloc(10); | |||
const buf = Buffer.allocUnsafe(10); | |||
</syntaxhighlight> | </syntaxhighlight> | ||
</blockquote><!-- Basics --> | |||
Revision as of 23:54, 31 July 2021
Buffers are reserved sections of memory designed to store binary data.
Documentation
buffer docs https://nodejs.org/api/buffer.html buffer tutorial https://nodejs.dev/learn/nodejs-buffers
Basics
Buffers are fixed size, reserved sections of memory.
You canalloc()the entire section of memory (filling it with 0s)
Or you canallocUnsafewhich simply reserves the memory (faster).By default, buffers are are stored as a UTF-8 array of bytes.
buffer.toString()converts the buffer to a UTF-8 string.import { Buffer } from 'buffer'; const buf = Buffer.alloc(10); const buf = Buffer.allocUnsafe(10);
