// daily.code()

Predict the output.
See the trace.

A daily code-learning loop for senior devs. Read a snippet, type what it prints, see how it actually ran - step by step. Five minutes, one snippet a day.

// free during beta · web push reminder · no video lessons

ownership_01.rs
UTF-8RUST6 lines
fn main() {
let s = String::from("hi");
let t = s;
println!("{}", t);
println!("{}", s);
}
%>

> What does this print?

// how it works

The senior-dev learning loop.

// read code

01

Read the snippet.

A handful of lines, real code. No toy examples.

// predict output

02

Type what it prints.

Form a prediction first - that's where the learning happens.

// see trace

03

See how it ran.

A step-by-step trace of what each line actually did. Compare to your guess.

// why it works

Built for people who already know how to code.

// five minutes

Daily, not bingey.

One snippet a day. Web push reminder at the time you pick. Easy to keep up with, easy to come back to.

// real rust

Real language quirks.

Ownership, borrows, lifetimes, traits, iterators, async. The corners that don't make sense until they do.

// streak

Show up, see your streak.

Per-day correctness, a 14-day sparkline on the dashboard, and a 90-day heatmap on /stats. No badges, no gamification creep.

// no fluff

No videos, no tutorials.

You read code, you predict, you compare. Theory blurbs are one paragraph - if you wanted a 30-minute video, this would be the wrong app.

// ready

Today's snippet is waiting.

Free during beta. Takes 30 seconds to sign up. No credit card.