Comprehensive Guide to Language Detection with language-detect API for Developers and SEO Enthusiasts

Introduction to language-detect

The language-detect library is an essential tool for developers who need to determine the language of a given piece of text. It provides a simple API with numerous functionalities, enabling you to seamlessly integrate language detection into your applications. This guide will introduce you to the basic and advanced uses of the language-detect API, complete with code snippets and an app example.

Basic Usage

To get started with language-detect, you’ll need to install the library:

 $ npm install language-detect 

Once installed, you can easily use the library to detect languages.

 const LanguageDetect = require('language-detect'); const detector = new LanguageDetect(); const language = detector.detect('Bonjour tout le monde'); console.log(language); 

Advanced API Examples

The language-detect library includes a variety of useful APIs. Here are a few examples:

1. Detect Multiple Languages

 const languages = detector.detect('Bonjour tout le monde. Hello world.', 2); console.log(languages); 

2. Detect Language with Probability

 const languagesWithProbability = detector.detectWithProbability('Hola mundo'); console.log(languagesWithProbability); 

3. Get Supported Languages

 const supportedLanguages = detector.getLanguages(); console.log(supportedLanguages); 

Building a Language Detection App

Let’s build a simple app that uses the language-detect API to identify the language of a given text:

1. Setting up the Project

 $ mkdir language-detect-app $ cd language-detect-app $ npm init -y $ npm install language-detect express body-parser 

2. Creating the Server

 const express = require('express'); const bodyParser = require('body-parser'); const LanguageDetect = require('language-detect');
const app = express(); const detector = new LanguageDetect();
app.use(bodyParser.json());
app.post('/detect', (req, res) => {
  const { text } = req.body;
  const languages = detector.detect(text, 3);
  res.json({ languages });
});
app.listen(3000, () => {
  console.log('Server is running on port 3000');
}); 

With this setup, you can send a POST request to /detect with a JSON body containing the text, and the server will respond with the top three detected languages.

Example POST request:

 POST /detect HTTP/1.1 Host: localhost:3000 Content-Type: application/json {
  "text": "Hello world! Bonjour tout le monde!"
} 

Example Response:

 {
  "languages": ["english", "french"]
} 

With language-detect, you can create more complex apps that handle multilingual inputs with ease.

Happy coding!

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