Common Code

README.md

A collection of common code snippets which shouldn't need to be re-invented every time they're required.

This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.

Add a js class to html element.js

with(document.documentElement){className=className.replace(/no-js/,'js')}

Centering fixed and absolute positioned elements.css

/*
A simple technique to centre absolute or fixed positioned elements within their container or the view port using only CSS.
The only requirement is that you know the width of the element. This also works for vertical centering assuming you know the height of the element.
*/
.dialog {
    position: fixed;
    left: 50%;
    margin-left:-200px;
    width: 400px;
}

Format file size.js

formatFileSize: function(bytes) {
    if (typeof bytes !== 'number') return '';
    if (bytes >= 1073741824) return (bytes / 1073741824).toFixed(2) + ' GB';
    if (bytes >= 1048576) return (bytes / 1048576).toFixed(2) + ' MB';
    return (bytes / 1024).toFixed(2) + ' KB';
}