JS Class

Foundations of AMD module syntax

foo = 'abc';
console.log(foo.length);

console.log(0.1+0.2);

//////////

var foo = {};

console.log('------ foo');
console.log(foo.__proto__)
console.log(foo.__proto__.__proto__)

function bar () {}

console.log('------ bar')
console.log(bar.__proto__)
console.log(bar.__proto__.__proto__)
console.log(bar.__proto__.__proto__.__proto__)

///////////



//////////

var foo1 = new Function (
  'console.log("bar1");'
);

function foo3 () {
  console.log('bar3');
}

var foo2 = function () {
  console.log('bar2');
};


foo1();
foo2();
foo3();

//////////////////////////////////

function foo () {
  var a = 42;
  
  function bar () {
    console.log(a);
  }
  
  bar();
}

// then

foo();

// then

var orly = foo();

/////////

function foo () {
  var a = 42;
  
  function bar () {
    console.log(a);
  }
  
  return { bar: bar }
}

foo().bar()

////

function foo () {
  var a = 42;
  
  function bar () {
    console.log(a);
  }
  
  return { bar: bar }
}

var orly = foo();
orly.bar(); // a no longer exists! EC still is available though.
orly.bar();

////////////

var outer = function () {
  var message="Hello closure!";
  this.inner = function () { // this is the global object
    console.log(message); 
    message = "Goodbye closure!"; 
  };
};

outer(); // just sets up inner function
outer = null; // garbage collect!
this.inner(); // but the local var message lives on
this.inner(); // and is mutable

////////////////

var MODULE = (function () {
  var
    privateVariable = 1,
    publicVariable = 2;

  function privateMethod () {
    // ...
  }

	function moduleMethod () {
		// ...
	}

	return {
	  method: moduleMethod,
	  property: publicVariable
	};
}());

///////////////

define('my_module', 

[
  'dep1', 
  'dep2'
], 

function (dep1, dep2) {
  var privateVar = 1;
  
  function init () {
    // do stuff
  }
  
  function privateMethod () {
    // do stuff
  }
  
  function publicMethod () {
    // do stuff
  }
  
  return {
    init: init,
    method: publicMethod
  };

});