How ECMAScript6 can change your life

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1. HOW ECMASCRIPT6 CAN CHANGE YOUR LIFE…
2. What is ECMAScript 6? ECMAScript 6, also known as ECMAScript 2015, is the latest version of the ECMAScript standard
3. History  1995 – JavaScript  1997 – ECMAScript 1  2009 – ECMAScript 5  2015 – ECMAScript 6 ECMA - European Computer Manufacturers Association
4. What you should already know?  JavaScript  HTML  CSS  Object Oriented Programming for Classes
5. ES6 Browser Support  Currently ES6 is not supported completely  Most of the features of ES5 are supported by all browsers  Conversion from ES6 to ES5 required  Babel Babel is a essentially an ECMAScript 6 to ECMAScript 5 compiler. It allows you to use ES6 features in your projects and then compiles ES5 for you to use in production.
6. Features in ECMA Script 6  New keywords for declaring variables  let  const  Spread Operator  For functions:  Default parameters  Arrow functions  Classes
7.  ‘let’ allows you to declare variables  limits the scope to block, statement, or expression on which it is used ‘let’ keyword
8.  ‘const’ creates a read-only reference to a value  variable identifier cannot be reassigned  Does NOT mean the value it holds is immutable ‘const’ keyword
9. ‘let’ & ‘const’ Keywords
10.  allows an expression to be expanded  works with:  multiple arguments (for function calls)  multiple elements (for array literals)  multiple variables (for de structuring assignment) ‘Spread’ operator (…)
11. ‘Spread’ Operator(…)
12.  allow formal parameters to be initialized with default values if no value or undefined is passed Default Function Parameters
13. Default Function Parameters
14.  also known has “Fat Arrow Functions” and are always anonymous  has a shorter syntax compared to function expressions  make the JS code more readable Arrow Functions (=>)
15. Arrow Functions (=>)
16.  introduced in ECMAScript 6  provide a much simpler and clearer syntax to create objects and deal with inheritance  NOT introducing a new object-oriented inheritance model to JS Classes
17. Classes
18. Road Ahead
19. Queries?
20. Thank you! See you Again Soon  “Success is that height of fame, where everyone in this world knows you by name” -Surbhi Agarwal https://in.linkedin.com/in/agarwalsurbhi @surbhiagarwal13