JS topics

js-topics.md

Javascript Mastery

Basic Language Features

conditionals, looping, comparison operators, object, arrays, etc

Except Arrays

• attribute selector (dot or array syntax)
• in operator

own property?

Truthiness and Automatic Conversions

• type conversions true == '1'
• === true === '1'
• NaN, undefined, null

function scopes or "this"

Clojures and Contexts

1. functions are the only scope barrier
2. pulling scope into a
3. show example of pulling state in
4. encapsulation

var counter = function() {
  var count = 0;
  var inc = function() {
    count += 1;
    return count;
  }
  var dec = function() {
    count -= 1;
    return count;
  }
  return [inc, dec];
}

Higher Order functions and Composition

difference between var myFunc = function() {} and function myFunc() {} and lifting

• Functions are values
• Functions can have their context or "this" changed
• currying with bind

Prototype Inheritance

• late binding of calls, to inheritance chain
• Object.getPrototypeOf()
• Constructor.prototype
• Object.create(prototype)
• Parent.call(this, arguments)

tool-chain

• npm or yarn
• webpack - precompiler(babel, jsx, erb, etc)
• webpack - commonjs, amd modules
• brower plugins

frameworks

• underscore
• immutable
• react/redux/router

Learning Paths:

the language - http://eloquentjavascript.net the toolchain - npm, es6, webpack(commonjs, amd) frameworks - react, underscore, immutable