Can search engines index JavaScript generated web pages?

Question

Can search engines such as Google index JavaScript generated web pages? When you right click and select view source in a page that is generated by JavaScript (e.g using GWT)

Answer 1

Even if they execute the basic JavaScript MOSTLY WEBSITES USES LIBRARIES AND FRAMEWORKS , I doesn't think so that a bot like google bot or any other spider will also load Js files linked with webpage and without loading them the JS code will produce errors.

/*Correct Me If I am wrong*/