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cosa significa $ in Javascript

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From	son <son@mailnesia.com>
Newsgroups	it.comp.lang.javascript
Subject	cosa significa $ in Javascript
Date	Fri, 26 Jul 2019 09:36:48 +0200
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Cosa significa il dollaro in questo codice di esempio?

function Person(first_name, last_name) {
     this.first_name = first_name;
     this.last_name = last_name;

     this.displayName = function() {
         console.log(`Name: ${this.first_name} ${this.last_name}`);
     };
}

Non mi pare che c'entri con jquery.

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cosa significa $ in Javascript son <son@mailnesia.com> - 2019-07-26 09:36 +0200
  Re: cosa significa $ in Javascript son <son@mailnesia.com> - 2019-07-26 09:41 +0200

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