Node.js · Theory

fsPromises.lstat() Method

Theory

656/723

fsPromises.lstat() Method

fsPromises.lstat() Method is a Node.js topic. In plain words you use it for fetch a user then marks in an API handler. Don’t start with a slogan — start with that picture.

Smallest example: async function + try/catch. Type it, run it, and say what you see. If you can do that from memory, you know fsPromises.lstat() Method.

From the example next to this theory — fsPromises.

Trap — unhandled rejection. Fix that before you talk about advanced Node.js.

Viva — what is fsPromises.lstat() Method? Then show async function + try/catch. Then name the trap.

Exam tip

What is fsPromises.lstat() Method? Show this: async function + try/catch. Trap: unhandled rejection.

Example

// fsPromises.lstat() Method
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));

fsPromises.lstat() Method: find user 2, then list names. Say both prints.

Short notes

DeffsPromises.lstat() Method — fetch a user then marks in an API handler.
Ruleasync function + try/catch
Trapunhandled rejection
Usean API handler

// fsPromises.lstat() Method 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));

fsPromises.lstat() Method

Example

Short notes

Questions

fsPromises.lstat() Method

Example

Short notes

Questions