length()

length() → { number }

This method returns the number of items in a collection. The output is in a JavaScript number data type. And hence, it cannot be followed by out().

It works like the JavaScript Array.length() method.

Example:

const text = '#Breaking: Can’t get over this #Oscars selfie from @TheEllenShow🤩! Go check it out:)https://pic.twitter.com/C9U5NOtGap #Share your best selfie@r2d2@gmail.com💯';
const patterns = [
  { name: 'wordEmoji', patterns: [ '[|NOUN|PROPN|ADP] [EMOJI|EMOTICON]' ] },
  { name: 'emailEmoji', patterns: [ '[EMAIL] [EMOJI|EMOTICON]' ] },
  { name: 'mentionEmoji', patterns: [ '[MENTION] [EMOJI|EMOTICON]' ] }
];
nlp.learnCustomEntities( patterns );
const doc = nlp.readDoc( text );

// length()
console.log( doc.sentences().length() ); // -> 2
console.log( doc.entities().length() ); // -> 9
console.log( doc.customEntities().length() ); // -> 3
console.log( doc.tokens().length() ); // -> 26