Let/Scopes Rest Parameter Arrow Function Modules Clases

1. Javascript Road Trip (2) (ECMASCRIPT 2015)
Presented By: Ahmed Assaf

2. Content
ECMASCRIPT 2015
Const & Let
Arrow Function
Extended Parameter Handling
Module
Class
2

3. Const & Let
Support for constants (also known as "immutable variables"),
i.e., variables which cannot be re-assigned new content.
3

4. Arrow Function
Expression Bodies : More expressive
closure syntax.
4
Statement Bodies : More expressive closure
syntax
Lexical this : More intuitive handling of current
object context

5. Default Parameter Values
5
Extended Parameter
Rest Parameter : Aggregation of remaining arguments into
single parameter
Spread Operator : Spreading of elements of an iterate
collection (like an array or even a string) into both literal
elements and individual function parameters.

6. Modules
Value Export/Import : Support for
exporting/importing values from/to modules
without global namespace pollution.
6
Some additional features include export default and
export *:

7. Classes
7
Class Definition Class Inheritance

8. Classes
8
Base Class Access

9. Classes
9
Static Members

10. Classes
10
Getter/Setter

11. References
11
• http://es6-features.org/
• https://github.com/DanWahlin/MasteringJavaScriptCourseCode/tree
/master/Mastering%20JavaScript/samples/jsObjects
• https://developer.mozilla.org/en/docs/Web/JavaScript/Reference
• https://babeljs.io/docs/learn-es2015/

12. Thank You