JS & CSS Tricks [Update]
16 Nov 2014 - by @liuyuel

JavaScript

Strip HTML Tags in JavaScript

var StrippedString = OriginalString.replace(/(<([^>]+)>)/ig,"");

IIFE (Immediately Invoked Function Expression)

// Anonymous function that has three arguments
(function(window, document, $) {

  // You can now reference the window, document, and jQuery objects in a local scope

})(window, document, window.jQuery); // The global window, document, and jQuery objects are passed into the anonymous function

Find max value in an array

var values = [1, 2, 3, 4, 5, 6, 7, 8];
var max = Math.max.apply(Math, values);

Debug CSS layers

// Try to type it in your browser console, and the different layers of HTML that there are in the web page will be highlighted in different colors.
[].forEach.call($$("*"),function(a){
  a.style.outline="1px solid #"+(~~(Math.random()*(1<<24))).toString(16)
})

CSS