David Heinemeier Hansson (DHH)

speaker

4,269 appearances 1 recordings 1 series first heard Jul 2025 last heard Jul 2025

David Heinemeier Hansson (DHH)’s voice in public audio — every appearance, attributed to the second.

Trend

recordings per month · last 12 months

No recordings in the last 12 months.Older appearances are listed below; set an alert to hear about the next one.

newest first · ▶ plays the moment

That's the bedrock of all programming languages.

They have the if conditional.

If you take most programming languages, they all have if.

That's basically the same in almost every language.

Space, start parentheses.

We all do that.

And then you have, perhaps let's say you're calling a object called user.

dot isAdmin, close parentheses, close parentheses, start brackets, and here's what we're going to do if the user's an admin, right?

That would be a normal programming language.

Ruby doesn't do it like that.

Ruby boils almost all of it away.

We start with the if.

Okay, that's the same.

No parentheses necessary because there's no ambiguity for the human to distinguish that the next part is just a single statement.

So you do if space user dot admin question mark.

No open brackets, no parentheses, no nothing.

Next open line, here's your conditional.

That question mark means nothing to the computer, but it means something to the human.

Ruby put in the predicate method style purely as a communication tool between humans.

It's actually more work for the interpreter to be able to see that this question mark is there.

Showing 621–640 of 4,269 · page 32 of 214