Salesforce Platform dev 1 Introduction to lightning development 2
Above video talks about lightning component bundle resources. When ever you create a lightning component it will create a bundles with following resource for you Component- This is the mandatory part of the bundle Css- This is for Css style Controller.js Design file which is represented with .design extension Documentation file which is represented with .auradoc extension Render and helper files are java script file if you want to override default render then render.js will give you option to create custom render Helper are the JS function which you can call from other JS code in the bundle SVG file which is represented with .svg extension. This represent custom icon resource for your bundle.