Node.js · Theory

Debugger

Theory

17/723

Debugger

Debugger is a Node.js topic. In plain words you use it for a short Debugger example in a script or API on localhost. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Debugger example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Debugger.

From the example next to this theory — Debugger: find user 2, then list names.

Trap — only saying “Debugger” with no example. Fix that before you talk about advanced Node.js.

Viva — what is Debugger? Then show the smallest Debugger example you can type. Then name the trap.

Exam tip

What is Debugger? Show this: the smallest Debugger example you can type. Trap: only saying “Debugger” with no example.

Example

// Debugger
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));

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

Short notes

DefDebugger — a short Debugger example in a script or API on localhost.
Rulethe smallest Debugger example you can type
Traponly saying “Debugger” with no example
Usea script or API on localhost

Node.js · Theory

Debugger

← All stacks

Theory

17/723

Debugger

Debugger is a Node.js topic. In plain words you use it for a short Debugger example in a script or API on localhost. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Debugger example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Debugger.

From the example next to this theory — Debugger: find user 2, then list names.

Trap — only saying “Debugger” with no example. Fix that before you talk about advanced Node.js.

Viva — what is Debugger? Then show the smallest Debugger example you can type. Then name the trap.

Exam tip

What is Debugger? Show this: the smallest Debugger example you can type. Trap: only saying “Debugger” with no example.

Example

// Debugger
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));

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

Short notes

DefDebugger — a short Debugger example in a script or API on localhost.
Rulethe smallest Debugger example you can type
Traponly saying “Debugger” with no example
Usea script or API on localhost

Debugger

Example

Short notes

Questions

Debugger

Example

Short notes

Questions