demo.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Demo</title>
  </head>
  <body>
    <main>
      <h1>Demo</h1>
      <div id="demo">See results at the console.</div>
    </main>
    <!-- <script src="minified/eld.M60.min.js" charset="utf-8"></script> -->
    <script type="module">
	  import { eld } from './src/languageDetector.js'

	  // detect() expects a UTF-8 string, returns an object, with a 'language' variable : ISO 639-1 code or empty string
	  console.log( eld.detect('Hola, cómo te llamas?') )
	  // { language: 'es', getScores(): {'es': 0.5, 'et': 0.2}, isReliable(): true }
	  // { language: string, getScores(): Object, isReliable(): boolean }

	  console.log( eld.detect('Hola, cómo te llamas?').language )
	  // 'es'

	  /*
	  * To reduce the languages to be detected, there are 2 options, they only need to be executed once.
	  *  This is the complete list on languages for ELD v1, using ISO 639-1 codes:
	  *  ['am', 'ar', 'az', 'be', 'bg', 'bn', 'ca', 'cs', 'da', 'de', 'el', 'en', 'es', 'et', 'eu', 'fa', 'fi', 'fr',
	  *   'gu', 'he', 'hi', 'hr', 'hu', 'hy', 'is', 'it', 'ja', 'ka', 'kn', 'ko', 'ku', 'lo', 'lt', 'lv', 'ml', 'mr',
	  *   'ms', 'nl', 'no', 'or', 'pa', 'pl', 'pt', 'ro', 'ru', 'sk', 'sl', 'sq', 'sr', 'sv', 'ta', 'te', 'th', 'tl',
	  *   'tr', 'uk', 'ur', 'vi', 'yo', 'zh']
	  */

	  let langSubset = ['en', 'es', 'fr', 'it', 'nl', 'de']

	  // Option 1. With dynamicLangSubset, detector executes normally, but at the end will filter the excluded languages
	  console.log( eld.dynamicLangSubset(langSubset) ) // Returns the validated languages of the subset
      // { 9: "de", 11: "en", 12: "es", 17: "fr", 25: "it", 37: "nl" }

	  // to remove the subset
	  eld.dynamicLangSubset(false)

	  /*
	  Option 2. The optimal way to regularly use the same subset, will be using saveSubset()
	  saveSubset() will download a new database of Ngrams with only the subset languages. (Only at a web browser)
		It is not included in the minified version.
		saveSubset() is also NOT included for Node.js, you would need to use a browser to download the Ngrams file
	  */
	  // eld.saveSubset(langSubset)

      // We can dynamically load any Ngrams database saved at src/ngrams/, including subsets. Returns true if success
      await eld.loadNgrams('ngramsL60.js') // Will not remove any active dynamic subset
      // eld.loadNgrams('ngramsL60.js').then((loaded) => { if (loaded) { /* code */ } })

      // To change the preloaded database on import, edit the file at scr/languageDetector.js: loadNgrams('ngramsM60.js')
      // if you believe eld should change this database preload behavior, comment at gitHub /discussions

      // Finally, we can get the current status of eld: languages, database type and subset
      console.log( eld.info() )
    </script>
  </body>
</html>