Whey I have a problem to identify a class on javascript

Question

I create a JavaScript class like below:

class contact{
   constructeur(nom,prenom){
     this.nom = nom;
     this.prenom = prenom;
   }     

   function afficher(){
     return "Nom : " + this.nom + "Prenom : " + this.prenom;
   }

...

But I have an error in jslint Excepted an identifier saw 'class'

And in eslint gives an error on the keyword 'Class' is reserved

Did you enabled ES6 syntax in ESLint? There should be an option `ecmaVersion` — ema, Jan 09 '20 at 20:23
The class' constructor should also be spelt in English, not a foreign language. — Edric, Jan 09 '20 at 20:25
Crockford (jslint's author) does not approve of the use of classes. Full stop. You can check [the instructions](https://jslint.com/help.html#es6) for what he does allow. Addis' answer (plus ema's hint) works for me; is there a reason you haven't accepted that answer? — ruffin, Sep 11 '20 at 20:57

score 0 · Answer 1 · edited Sep 11 '20 at 20:58

There are a few issues with your code:

as ema says, you need esversion set to 6.
class names should start with block letters, even though this may not be a cause for an error message.
constructor is misspelled
you don't need function keyword for class methods.

/*jshint esversion:6 */

class Contact {
  constructor (nom, prenom) {
      this.nom = nom;
      this.prenom = prenom;
  }
  afficher () {
      return "Nom : " + this.nom + " Prenom : " + this.prenom;
  }
}

Whey I have a problem to identify a class on javascript

1 Answers1