Javascript frameworks have exploded on the scene over the last few years but they're no replacement for a good toolbox: those little snippets of code you seem to include in every single project. Here's my list of 10 essential Javascript tools everyone should have at their fingertips!
#1 - Numeric Sort.
#2 - Formatting Numbers
#3 - Search an Array
#4 - HTML Entities
#5 - Is it an object, or is it an Array?
#6 - Cookies!
#7 - Function Mapping
#8 - Controling Stylesheets
#9 - getElementsByClassName
#10 - AJAX
Import Cool Tools
Different People, Different Tools