How to usethe String constructor with Array.join in Javascript

Approach 5: Using TextDecoder.decode() with Node.js Buffer

Using the String constructor with Array.join converts a byte array to a string by mapping each byte to its character representation, joining them together into a single string using Array.join method.

Example

JavaScript

const byteArray = [72, 101, 108, 108, 111]; // ASCII codes for "Hello"
const str = byteArray.map(byte => String.fromCharCode(byte)).join("");
console.log("String:", str);

Output

String: Hello

How to Convert Byte Array to String in JavaScript ?

A Byte array is an array containing encoded data in the form of unsigned integers. It can’t be used directly. We have to decode it to get the meaning full data out of it. In this article, we will learn the conversion of a given byte array to a string of characters.

Various approaches to convert byte array to string are as follows:

Table of Content

Using WebAPI TextDecoder.decode() Method
Using Buffer and toString() Methods
Using JavaScript string.fromCharCode() Method
Using Base64 Encoding and Decoding
Using TextDecoder.decode() with Node.js Buffer
Using the String constructor with Array.join

How to usethe String constructor with Array.join in Javascript

How to Convert Byte Array to String in JavaScript ?

Similar Reads