A fifth of century

A quick overview of the history of JavaScript.

Transcript

1. A fifth of century A fifth of century
4. About me About me I like dogs JavaScript developer Member of NodeBots Buenos Aires and NodeSchool Buenos Aires
5. What we will talk about What we will talk about ECMAScript 2015 (aka version 6) ECMAScript 5 ... ECMAScript 1 Before the beginning How the process changed
6. ES2015 -> ES5 ES2015 -> ES5 Classes Arrow functions Iterators (and generators) Proxies Destructuring let and const and many more
7. Pages 110 117 188 252 566 ES1 ES2 ES3 ES5 ES2015 0 100 200 300 400 500 600 ES2015 is quite big ES2015 is quite big
8. Start embracing it! Start embracing it! Understanding ECMAScript 6 - by Nicholas Zakas Exploring ES6 - Axel Rauschmayer YDKJS: ES6 & Beyond - Kyle Simpson
9. ES5 -> ES4 ES5 -> ES4 404 - not found 404 - not found aka JavaScript v2 aka JavaScript v2
10. "ES4 was so large and so innovative that there were doubts about whether it could be successfully specified and implemented." Douglas Crockford
11. ES5 -> ES5 -> ES4 ES4 ES3 ES3 Final draft of ES3 was published on 1999. Final draft of ES5 was published on 2009. 2006 - First release of jQuery 2006 - AJAX is standardized by the W3C 2004 - Release of Gmail 2000 - End of the world
13. strict mode getters and setters Higher order array methods JSON Object.seal and Object.freeze immutable undefined ES5 introduced:
14. (function (){ undefined=1;})(); alert(undefined == 1); // true
16. ES3 -> ES2 ES3 -> ES2 Final draft of ES2 was published in 1998
17. try/catch strict comparison instanceof fn.apply switch function expressions Array helpers (slice, splice, concat, etc) ES3 introduced:
18. abstract do import short boolean double instanceof super byte enum int super case export interface switch catch extends long synchronized char final native throw class finally package throws const float private transient debugger goto protected try default implements public volatile ES2 future reserved words ES2 future reserved words
19. Out of 40 future reserved words in ES2, 38 are also a Java keyword.
20. ES2 -> ES1 ES2 -> ES1 Final draft of ES1 was published in 1997
21. ES1 -> Mocha ES1 -> Mocha The night is dark and full of terrors.
22. JavaScript is created in May JavaScript is created in May 1995 by Brendan Eich 1995 by Brendan Eich Other things happening in 1995: invention of Java, Ruby and PHP
23. Any JavaScript error would open a pop-up. There was no array and object literals. The constructor property couldn't be set by assignment
27. Lets polyfill: undefined=void jsconfeu;
28. if (typeof Object.create != 'function') { Object.create = Function('o', 'var F = Function();' + 'F.prototype = o;return new F();'); }
29. ES2016 and beyond ES2016 and beyond Releases shipping yearly non browser vendor based commitee Open committee https://esdiscuss.org https://github.com/tc39
30. Resources Resources https://brendaneich.github.io/ModernWeb.tw-2015 "JavaScript at 20" by Brendan Eich https://youtu.be/UzyoT4DziQ4​ "Virtual Machines, JavaScript and Assembler" by Scott Hanselman Evolution of JavaScript III https://vimeo.com/123546533
31. Thanks! Thanks! @a0viedo