WH

Revile those Styles

If the styles of stylesheets are atrocious, and you have no control over its loading, you may want to disable specific stylesheets with javascript.

Conflicting Events Handlers

Use event namespacing when attaching or detaching event listeners. This reduces the possibility of you accidentally removing event listeners that was not intended to be removed. This is especially important if you plan to use someone else's JQuery plugin that interacts with an element which you are also manipulating through your own event handler attachment or detachment. There could also be the opposite problem where someone else's JQuery plugin removes your attached listeners. This is why namespacing events is a good practice.

Common Object Format

Most JQuery plugins will use the common format of customizing by providing a plain object to the plugin handler. This is well suited for plugins that provide a widget to your page where a callback might not be needed.

Prototype and This

When attaching a method onto a prototype, the methods can be called from another prototype method using "this".

Function Parameters from Array Values

Suppose we have a function with parameters and an array:

// A Function and an Array

function doSomething(stuff, thing1, thing2) {
  console.log("params were concatenated:" + " " + stuff + thing1 + thing2);
}

var justAnArray = ["a", "b", "c"];

Getting the Right 'this'

With jQuery, you often find yourself using an event listener with a callback function like so:

// Common Event Handler

$(document).ready(function () {
  $(".my-element").click(function () {
    console.log("this is ", this);
  });
});

Detect Max Screen Width

When a browser is zoomed in or resized, the reported maximum device screen width may not be what you expect. For example, you have a 1280px by 800px screen and fully maximized browser screen at 100% zoom level, but when you zoom into the page and use window.innerWidth to determine the max width, the value may not be 1280px.