dannycallaghan

/* Function Terminology */

// - (unamed) function expression
// - anonymous function
// - a.k.a. function literal
var add = function ( a, b ) {
	return a + b;
};

// - (unamed) function expression

dannycallaghan

/* Hoisting - function declarations vs function expressions */
function foo () { alert( 'global foo' ); }
function bar () { alert( 'global bar' ); }

function hoistMe () {

	console.log( typeof foo ); // "function"
	console.log( typeof bar ); // "undefined"
	
	foo(); // alerts "local foo"

dannycallaghan

/* Cross browser add and remove events - with init-time branching */

// the interface
var utils = {
	addListener : null,
	removeListener : null
};

// the implementation
if ( window.addEventListener ) {

dannycallaghan

/* Currying */
// Currying is making JavaScript functions understand and handle partial application

// A non-curried add functions
var add = function ( x, y ) {
	return x + y;
};

// A curried add function
function add ( x, y ) {

dannycallaghan

/* Namespace Function */

var MYAPP = MYAPP || {};

MYAPP.namespace = function ( ns_string ) {
	var parts = ns_string.split( '.' ),
		parent = MYAPP, i;
	if ( parts[ 0 ] === "MYAPP" ) {
		parts = parts.slice( 1 );
	}

dannycallaghan

Array.max = function( array ){
    return Math.max.apply( Math, array );
};
 
Array.min = function( array ){
    return Math.min.apply( Math, array );
};

dannycallaghan

// usage: log('inside coolFunc',this,arguments);
// http://paulirish.com/2009/log-a-lightweight-wrapper-for-consolelog/
window.log = function () {
  log.history = log.history || [];   // store logs to an array for reference
  log.history.push( arguments );
  if ( this.console ){
    console.log( Array.prototype.slice.call( arguments ) );
  }
};

dannycallaghan

##### Optimise caching #####

### Leverage Browser Caching ###

- 'Expires' and 'Cache-Control: max-age'
Specify time period browser can use a local copy without checking for a newer version. Strong cache headers - will not issue a GET request until the expiry or max age is reached.
- 'Last-Modified' and 'ETag'
Specify some characteristic that the browser checks to see if the files are the same - 'Last-Modified' is always a date; 'ETag' is any value that uniquely identifies that resource, like version number or hash. Weak cache header - the browser applies a heuristic to determine whether to use a cahce copy or not (each browser uses a different heuristic). Uses a conditional GET though - don't return a full response unless the resource has changed (thus lower latency than full GETS).

dannycallaghan

# vim:ft=zsh ts=2 sw=2 sts=2
#
# agnoster's Theme - https://gist.github.com/3712874
# A Powerline-inspired theme for ZSH
#
# # README
#
# In order for this theme to render correctly, you will need a
# [Powerline-patched font](https://gist.github.com/1595572).
#

dannycallaghan

// May ask you to install x-code command line tools
// If so, just follow the prompt
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"