Christian Heilmann

Stupid Tricks with JavaScript

Friday, June 9th, 2006 at 11:23 am

Dude, check this out

This does not throw a syntax error. First one to see through my crazy trick can take a cookie from the jar in the kitchen!

The cookie goes to Matthew (check the comments).

Explanation: You can set labels in JavaScript (as explained in an earlier post) by adding a colon to a name, and all a URL does is create a label with the name ‘http’. As the double slash is following the colon, the JavaScript interpreter only recognises a label followed by a comment.

Share on Mastodon (needs instance)

Share on BlueSky

Newsletter

Check out the Dev Digest Newsletter I write every week for WeAreDevelopers. Latest issues:

Word is Doomed, Flawed LLM benchmarks, hard sorting and CSS mistakes Spot LLM benchmark flaws, learn why sorting is hard, how to run Doom in Word and how to say "no" like a manager.
30 years of JS, Browser AI, how attackers use GenAI, whistling code Learn how to use AI in your browser and not on the cloud, why AI makes different mistakes than humans and go and whistle up some code!
197: Dunning-Kruger steroids, state of cloud security, puppies>beer
196: AI killed devops, what now? LLM Political bias & AI security Learn how AI killed DevOps, create long tasks in JS, why 1 in 5 security breaches are AI generated code & play "The Scope Creep"
195: End of likes, JS Zoo and Tim Berners-Lee doesn't see AI vs Web Meta kills like buttons, Tim-Berners-Lee thinks AI won't kill the web, GitHub is ending toasts and the worst selling Microsoft product.

My other work: