Node.js · Theory

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Errors

Zara only reaches for Errors when Errors on Zara's board has to stay correct in a viva board.

Errors order — meaning → one Errors step Zara can write from memory → one limit. Dumping ten features helps nobody.

Without Errors, a viva board gets messy and Errors on Zara's board is hard to trust.

Errors shows up in a viva board. Name Errors on Zara's board, not “a real-world scenario”.

Errors miss — only reciting the name of Errors. Fix it before you talk about advanced Node.js.

Place Errors next to nearby Node.js work — one Errors step Zara can write from memory is the link.

Viva for Errors: what it is → one Errors step Zara can write from memory → the mistake (only reciting the name of Errors).

Exam tip

Say Errors in one breath, then one Errors step Zara can write from memory, then only reciting the name of Errors.

Example

// Errors
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));

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

Short notes

DefErrors — Zara uses it for Errors on Zara's board in a viva board.
RuleErrors → one Errors step Zara can write from memory.
RememberErrors + an Express route (a viva board).
UseErrors in a viva board (Errors on Zara's board).
TrapErrors — only reciting the name of Errors.
ExErrors → Errors on Zara's board.

// Errors 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));

Errors

Example

Short notes

Questions

Errors

Example

Short notes

Questions