Node.js · Theory

MongoDB Sorting

Theory

50/723

MongoDB Sorting

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

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

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

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

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

Exam tip

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

Example

// MongoDB Sorting
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));

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

Short notes

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

Node.js · Theory

MongoDB Sorting

← All stacks

Theory

50/723

MongoDB Sorting

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

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

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

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

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

Exam tip

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

Example

// MongoDB Sorting
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));

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

Short notes

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

MongoDB Sorting

Example

Short notes

Questions

MongoDB Sorting

Example

Short notes

Questions