Javascript: The good parts for humans (part 1)
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This document provides an overview and schedule for a 5-day JavaScript training. Day 1 covers the history and basics of JavaScript including grammar, objects, and functions. Day 2 focuses on functions, inheritance, and arrays. Day 3 covers regular expressions and miscellaneous topics. Day 4 discusses bad parts of JavaScript, JSON, code quality tools, and best practices. Day 5 is an introduction to JavaScript. The document also includes brief definitions and explanations of JavaScript concepts such as values, strings, conditionals, loops, expressions, and objects.
Javascript: The good parts for humans (part 1)
- 1. JavaScript The good parts for humans (part 1) B Anjaneyulu Reddy Email: [email protected] Twitter: @_anji www.evibe.in
- 2. Training Schedule Day 1 o History o Grammar o Objects Day 2 o Functions o Inheritance Day 3 o Arrays o RegEx o Misc Day 4 o Bad parts o JSON o JSLint o Other best practices Day 5
- 3. Who is the author of JS? Brendan Eich
- 4. In which year was JS shipped? 1995
- 5. Name the company in which JS was born? NetScape
- 6. History of JavaScript (1 of 3) Java applets failed o Microsoft's self implementation of Java VM o long loading time o native OS GUI look and feel How Flex is different from Java applets? Java applet vs Flash vs Silverlight
- 7. History of JavaScript (2 of 3) • `Scheme` like scripting language • Brand new programming language in 10 days Java Scheme Self LiveScriptJavaScript JScript
- 8. History of JavaScript (3 of 3) W3C ECMA - ECMA Script Why haven't the bad parts been fixed?
- 9. Introduction to JS • What is JS? • World's most popular programming language • World's most confused programming language • A language of many contrasts o Write without learning o Loosely typed o Prototype inheritance o Dynamic objects o Language with design mistake: Global variables
- 10. Bad parts Global variables Semicolon insertion + adds and concatenates `typeof ` `with` and `eval` phony array == and != false, null, undefined, NaN
- 11. JS falsy values false null undefined NaN '' - empty string 0 - the number 0 All other values are truthy.
- 13. Grammar Names Reserved words: abstract, boolean, break, byte, case, catch, char, class, const, continue, debugger, default, delete, do, double, else, enum, export, extends, false, final, finally, float, for, function, goto, if, implements, import, in, instanceof, int, interface, long, native, new, null, package, private, protected, public, return, short, static, super, switch, synchronized, this, throw, throws, transient, true, try, typeof, var, volatile, void, while, with, Infinity, NaN, undefined
- 14. Grammar Numbers
- 15. Grammar Exercise 1 1 === 1.0 ? isNaN(); 10 / 0 ? 0 / 0 ? Number.MAX_VALUE;
- 16. Grammar String String are immutable length, toUpperCase() 'c' + 'a' + 't' === 'cat' ?
- 17. Grammar Statements JS scoping? JS blocks labels - to break loops 1.html
- 20. Grammar Conditional Statements • if • switch block if statement
- 22. Grammar Looping Statements • while • for • do
- 25. Objects What is an Object? Except JS simple types, everything else is an object { numbers, strings, booleans, null and undefined} Objects are mutable keyed collection
- 26. Objects literal
- 28. Objects Exercise 2 o Sample Object o TypeError - undefined o || Operator o && Operator o pass by reference o prototypal inheritance Object.beget dynamic relationship o hasOwnProperty o for in statement o global abatement
- 29. Thank You
Editor's Notes
- #7: Java Applets vs Flash vs Silverligth http://www.shinedraw.com/image-manipulation/javafx-vs-flash-vs-silverlight/ http://stackoverflow.com/questions/816428/java-applets-vs-silverlight-vs-flash-flex
- #8: Java Applets vs Flash vs Silverligth http://www.shinedraw.com/image-manipulation/javafx-vs-flash-vs-silverlight/ http://stackoverflow.com/questions/816428/java-applets-vs-silverlight-vs-flash-flex