El coste de los frameworks de JavaScript

Muy interesante todo lo que se explica en The Cost of Javascript Frameworks:

There is no faster (pun intended) way to slow down a site than to use a bunch of JavaScript.

The thing about JavaScript is you end up paying a performance tax no less than four times:

1. The cost of downloading the file on the network

2. The cost of parsing and compiling the uncompressed file once downloaded

3. The cost of executing the JavaScript

4. The memory cost