JavaScript documentation generator tools JSDoc, YUIDoc, Docco. Which is the best ?

node.js and reasons to use it

Javascript engine and Google V8

Tools required to develop PhoneGap / Cordova App

How to attach event to element which execute only once?

Pageload optimization using jQuery CDN

What is Cordova and its relation to PhoneGap?

Toolkits for developing Hybrid Apps.

Native Apps, Web Apps, and Hybrid Apps. What is the difference?

undefined and null in javascript. What is the difference ?

Event Bubbling, How to prevent it ?

parent, parents, closest. What is the difference ?

Local storage, Cookies. What to use ?

empty, remove, detach. What is the difference ?

bind, live, delegate, on. What is the difference ?

em, px, pt, percent. What is the difference ?