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var post = $('.wall-post-copy').first();

if (post.children().first().attr('target') == "_blank") {
post.children().first().css('display', 'none') }

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// Get proper container height

function getContainerHeight(){
  var myHeight = $('#my-header').outerHeight(),
  var yourHeight = $('#deal-details').height(),
  containerHeight = ( myHeight > yourHeight ? myHeight : yourHeight );
  return containerHeight;
}

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= content_for :meta do
  meta content=FACEBOOK['client_id'] property="fb:app_id" /
  meta content=@user.url property="og:url" /
  meta content=@user.short_title property="og:title" /
  meta content=@user_sharing.facebook_data[:description] property="og:description" /
  meta content=@user_sharing.facebook_data[:photo_url] property="og:image" /
  meta content="summary" name="twitter:card" /
  meta content="@lettucebooks" name="twitter:site" 
  meta content=@user.url name="twitter:url" 
  meta content=@user.short_title name="twitter:title" 

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// Arguments look like array's but are not. But you can add array functionality with prototype.

function Max(x,y,z) {
  var args = Array.prototype.slice.call(arguments);
  return args;
}

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// Use index of to check contents of array. 
// A function that takes a character (i.e. a string of length 1) and returns true if it is a vowel, false otherwise.

function isVowel(letter) { 
  vowels = ['a','e','i','o','u'];
  var result = vowels.indexOf(letter)
  if (result >= 0) { 
    return true;
  } 
  else { 

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function sum ( args ) {
  var array, sum = 0; // Set vars
  // Conditional to type check what the arguments are
  if ( typeof args == 'number' ) {  // If not an array, then convert it to one.
    array = Array.prototype.slice.call(arguments, 0); // Gotcha, using the key word 'arguments', not the 'args' word. 'arguments' is a special word in javascript that looks like an array, but is not.
  } else {
	  array = args;  
  }

  for ( i in array ) { // I assume recursion could be used here if I knew how recursion worked.

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The moment (function(){})() made sense.

Let's start with a simple concept.

1 + 1
=> 2

Adding parens clarifies order of operations.

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JS Callback AH-HA

When I told people I was confused about callbacks I often heard that callbacks were just functions. So I couldn't figure out what my hurdle was to grasping them. But I just had an AH-HA! moment after getting a better grasp on some basic syntax.

JavaScript functions use () for two different reasons. Let me recap so that we're on the same page;

2 reasons for ( )

1st | Declaration

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JS return values chain well

Make an array

var a = []
=> []

And a function that returns the array

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Shorthand if, else if, else (and return)

Getting comfortable with the shorthand conditional syntax. If you put the conditional on one line, the {} are not needed. Even when having multiple conditionals.

Explicit returns

return will terminate the function and spit out as it sees. No need to assign the argument to a variable.