[ctek]

We have an extensive JavaScript codebase at the large corporation I work at and by simply enforcing the use of ECMAScript 5 Strict Mode and verifying with JSLint we are able to catch most potential issues but then again, nobody there is writing large systems in JavaScript, only flourishes of browser-side interactivity...

[mattacular]

I'm hoping Node continues to gain popularity. The idea of using the same language on the serverside and clientside seems too enticing to fail.