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Javascript - Lezione 0

Robert Casanova
Robert Casanova

Brendan Eich invented JavaScript in 1995 while working at Netscape Communications to enable dynamic and interactive web pages. He developed the first version in 10 days, initially naming it Mocha and then renaming it LiveScript before settling on JavaScript. The standardization of the language occurred between 1997-1999 by ECMA, under the name ECMAScript. ECMAScript 5 is currently the most supported version, with ECMAScript 6 recently released. JavaScript is an interpreted, lightweight, object-oriented language with first-class functions, commonly used for client-side logic in web pages but also used in non-browser environments like node.js.

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Lezione 0 Deep into JS Meetup
Le Origini
Viene inventato nel1995 ad opera di Brendan Eich, giovane programmatore della neonata Netscape Communication. I came to Netscape in April 1995, after seven years at Silicon Graphics and three years at MicroUnity Systems Engineering. Netscape was about a year old then and was looking for someone to work on a scripting language or some kind of language inside the browser that could be used to automate parts of a web page or make a web page more dynamic. Java had been around for 鍖ve years at First Person and Sun, and had been retooled for the web in late 1994. Netscape was the 鍖rst Java licensee, so the issue became: Can we do just Java, or do we need another language? (Brendan Eich)
Javascript - Lezione 0
Brendan sviluppa la prima versione in 10 giorni e prende il nome di Mocha, successivamente rinominata in LiveScript e in鍖ne JavaScript.
La standardizzazione del linguaggio avviene tra il 1997-99 ad opera di ECMA(European Computer Manufactures Association) sotto il nome di ECMAScript
La versione attualmente pi湛 supportata e diffusa 竪 ECMAScript 5, da poco 竪 stata rilasciata ECMAScript 6 (Javascript Harmony)
Javascript - Lezione 0
Javascript - Lezione 0
Il linguaggio
JavaScript速 (often shortened to JS) is a lightweight, interpreted, object-oriented language with 鍖rst-class functions, most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js. It is a prototype-based, multi- paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles.
Javascript - Lezione 0
lightweight! interpreted! object-oriented 鍖rst-class functions! prototype-based! multi-paradigm (object-oriented and functional programming)
Casi duso
Logica client-side (routing, controller, view) Interattivi alle pagine web (caroselli, parallassi, ..) HTML5 (Canvas, Image Manipulation, WebGL, Audio, ) Pagine WEB
NodeJS (Express) SocketIO (demo) Server Side
Desktop (Electron, NW.js, ChromeApp ) Mobile (React Native) Applicazioni Native
NodeMCU Internet of Things, Microcontrollers
Lets PlayA
Variabili e Data Types
Scope and Hoisting

More Related Content

Javascript - Lezione 0

  • 3. Viene inventato nel1995 ad opera di Brendan Eich, giovane programmatore della neonata Netscape Communication. I came to Netscape in April 1995, after seven years at Silicon Graphics and three years at MicroUnity Systems Engineering. Netscape was about a year old then and was looking for someone to work on a scripting language or some kind of language inside the browser that could be used to automate parts of a web page or make a web page more dynamic. Java had been around for 鍖ve years at First Person and Sun, and had been retooled for the web in late 1994. Netscape was the 鍖rst Java licensee, so the issue became: Can we do just Java, or do we need another language? (Brendan Eich)
  • 5. Brendan sviluppa la prima versione in 10 giorni e prende il nome di Mocha, successivamente rinominata in LiveScript e in鍖ne JavaScript.
  • 6. La standardizzazione del linguaggio avviene tra il 1997-99 ad opera di ECMA(European Computer Manufactures Association) sotto il nome di ECMAScript
  • 7. La versione attualmente pi湛 supportata e diffusa 竪 ECMAScript 5, da poco 竪 stata rilasciata ECMAScript 6 (Javascript Harmony)
  • 11. JavaScript速 (often shortened to JS) is a lightweight, interpreted, object-oriented language with 鍖rst-class functions, most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js. It is a prototype-based, multi- paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles.
  • 13. lightweight! interpreted! object-oriented 鍖rst-class functions! prototype-based! multi-paradigm (object-oriented and functional programming)
  • 15. Logica client-side (routing, controller, view) Interattivi alle pagine web (caroselli, parallassi, ..) HTML5 (Canvas, Image Manipulation, WebGL, Audio, ) Pagine WEB
  • 16. NodeJS (Express) SocketIO (demo) Server Side
  • 17. Desktop (Electron, NW.js, ChromeApp ) Mobile (React Native) Applicazioni Native
  • 18. NodeMCU Internet of Things, Microcontrollers