Node.js · Theory

Create Collection

Theory

46/723

Create Collection

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

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

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

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

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

Exam tip

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

Example

// Create Collection
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));

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

Short notes

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

Node.js · Theory

Create Collection

← All stacks

Theory

46/723

Create Collection

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

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

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

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

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

Exam tip

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

Example

// Create Collection
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));

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

Short notes

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

Create Collection

Example

Short notes

Questions

Create Collection

Example

Short notes

Questions