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Node.js – Retrieving file character encoding
A computer system works upon bits. In the same way, a computer reads files into binary representation which is why we need to convert text characters into binary data. Most popular character encoding types types are: ASCII and Unicode. Unicode has two further types: utf8 and utf16.
Syntax
detectCharacterEncoding(filePath)
Setting Up the Environment and Execution:
Step I − Initialize the node project.
npm init
Step II − Install the required modules.
npm install detect-character-encoding
Step III − Pass the text file name whose encoding is required.
Example 1
Create a file "abc.txt" with the following text: "Welcome to Tutorials Point" and save it in the project directory.
Create a file with the name "charEncoding.js" and copy the following code snippet. After creating the file, use the command "charEncoding.js" to run this code.
// Get Character Encodning Example
// Importing the fs & characterEncoding module
const fs = require('fs');
const detectCharacterEncoding = require('detect-character-encoding');
// Passing the filename
const fileBuffer = fs.readFileSync('abc.txt');
const charsetMatch = detectCharacterEncoding(fileBuffer);
console.log(charsetMatch);Output
C:\home
ode>> node charEncoding.js { encoding: 'ISO-8859-1', confidence: 44 }
Example 2
Create a file "sample.txt" with the following content: "1234567890" and save it in the project directory.
// Get Character Encodning Example
// Importing the fs & characterEncoding module
const fs = require('fs');
const detectCharacterEncoding = require('detect-character-encoding');
// Passing the filename
const fileBuffer = fs.readFileSync('sample.txt');
const charsetMatch = detectCharacterEncoding(fileBuffer);
console.log(charsetMatch);Output
C:\home
ode>> node charEncoding.js { encoding: 'UTF-8', confidence: 15 }
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