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buffer-indexof-polyfill
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Package description
The buffer-indexof-polyfill npm package provides a polyfill for the `indexOf` method on Buffer instances in Node.js. This is particularly useful for environments or versions of Node.js where `Buffer.indexOf` is not available. It allows developers to search for sequences within buffer objects, similar to how strings are searched in JavaScript.
Finding the index of a string within a buffer
This feature allows you to find the first occurrence of a string within a buffer. The code sample demonstrates searching for the string 'world' within a buffer containing 'hello world', which returns the index 6, indicating the start of the match.
var indexOf = require('buffer-indexof-polyfill');
var buf = Buffer.from('hello world');
var index = indexOf(buf, 'world');
console.log(index); // Outputs: 6
Finding the index of a buffer within another buffer
This feature enables searching for a sequence of bytes (represented by a buffer) within another buffer. The example shows how to find a buffer containing 'world' within another buffer, yielding the same result as searching for a string.
var indexOf = require('buffer-indexof-polyfill');
var buf = Buffer.from('hello world');
var search = Buffer.from('world');
var index = indexOf(buf, search);
console.log(index); // Outputs: 6
Similar to buffer-indexof-polyfill, buffer-indexof provides functionality to find the index of a buffer within another buffer. The main difference is that buffer-indexof is not specifically a polyfill and may offer optimized performance for certain use cases.
While not directly offering the same functionality, safe-buffer provides a safer way to work with buffers in Node.js, including a consistent API across different Node.js versions. It can be used alongside methods like `indexOf` to ensure compatibility and safety.
Readme
This is a polyfill for Buffer#indexOf
and Buffer#lastIndexOf introduced in NodeJS 4.0.
require("buffer-indexof-polyfill");
new Buffer("buffer").indexOf("uff") // return 1
new Buffer("buffer").indexOf("abc") // return -1
npm install buffer-indexof-polyfill
FAQs
This is a polyfill for Buffer#indexOf introduced in NodeJS 4.0.
The npm package buffer-indexof-polyfill receives a total of 2,774,153 weekly downloads. As such, buffer-indexof-polyfill popularity was classified as popular.
We found that buffer-indexof-polyfill demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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