Node.js · Theory

StringDecoder

Theory

24/723

StringDecoder

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

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

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

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

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

Exam tip

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

Example

// StringDecoder
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));

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

Short notes

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

Node.js · Theory

StringDecoder

← All stacks

Theory

24/723

StringDecoder

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

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

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

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

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

Exam tip

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

Example

// StringDecoder
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));

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

Short notes

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

StringDecoder

Example

Short notes

Questions

StringDecoder

Example

Short notes

Questions