Javascript

Javascript. In the beginning, servers ran code on servers. Users visited servers, and downloaded material. Then, someone wanted to offload some of the server load to the client computers. Websites such as gmail started using AJAX to auto update the inbox, without requiring a refresh of the page. Now we have websites running code on a user's computer. What could go wrong? Can you trust a website to only run good code? What if a website runs malicious code? Now we have malware on the internet. Served by ads, served by websites, and largely facilitated by Javascript.

Javascript is bad. It sucks. Don't use Javascript.