Node.js · Theory

TTY

Theory

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TTY

Amit only reaches for TTY when Amit walking through TTY has to stay correct in a small live site.

TTY on the board — one TTY step Amit can write from memory. Then say what Amit walking through TTY looks like after.

Without TTY, a small live site gets messy and Amit walking through TTY is hard to trust.

TTY shows up in a small live site. Name Amit walking through TTY, not “a real-world scenario”.

If Amit walking through TTY breaks under TTY, check only reciting the name of TTY first.

After TTY, Amit should still remember only reciting the name of TTY.

One breath for TTY, then Amit walking through TTY, then only reciting the name of TTY. Sit down.

Exam tip

Board: Amit walking through TTY. Dry-run TTY. Name the trap: only reciting the name of TTY.

Example

// TTY
const users = [
  { id: 1, name: "Asha" },
  { id: 2, name: "Ravi" },
];

function findUser(id) {
  return users.find((u) => u.id === id) ?? null;
}

console.log(findUser(2));
console.log(users.map((u) => u.name));

TTY: find user 2, then list names. Say both prints.

Short notes

DefTTY — Amit uses it for Amit walking through TTY in a small live site.
RuleTTY → one TTY step Amit can write from memory.
RememberTTY + an Express route (a small live site).
UseTTY in a small live site (Amit walking through TTY).
TrapTTY — only reciting the name of TTY.
ExTTY → Amit walking through TTY.

// TTY const users = [ { id: 1, name: "Asha" }, { id: 2, name: "Ravi" }, ]; function findUser(id) { return users.find((u) => u.id === id) ?? null; } console.log(findUser(2)); console.log(users.map((u) => u.name));

TTY

Example

Short notes

Questions

TTY

Example

Short notes

Questions