JS notes

js-notes

# New frontiers in javascript: the browser at the bleeding edge
## Possible futures
1. new libs (new jQuery)
2. ECMAscript 6
3. Make your own (sweet.js)
4. web assembly (coffeescript)

## 1. New Libs
- React.js: shadow DOM (diffing shadow DOM to DOM)
    - calculate differences in DOM nodes
    - fast rendering
- Pixi.js
    - webgl lib
    - performant

## 2. ECMAscript 6
- generators
    - resumable function
    - yield features
    - maintaining eternal state
    - http://jlongster.com/A-Study-on-Solving-Callbacks-with-JavaScript-Generators
- scoping changes
    - `1et` keyword
    - `{ let x = 10 }`
    - `{ const x = 10 }`
- destructing assignment
    - Before
        `var foo = function () { return [1,2] };`
        `vals  = foo();`
        `x = vals[0]; y = vals[1]`
    - After
        `[x, y] = foo ();`
- string interpolation
    - `x = 1`
    -  my favorite number is ${x}
        -  with backticks `
- Concurrency Models
    - David Nolan
        - ECMAscript generators and CSP
- Promises

# 3. Sweet.js
- http://sweetjs.org/

# 4. Compile to JS
- elm
- functional reactive programming
- instead of when I click do something