Node.js · Theory

fsPromises.mkdtemp() Method

Theory

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fsPromises.mkdtemp() Method

fsPromises.mkdtemp() Method sits in an API handler. Vikram’s job is fetch a user then marks. Write that first.

Keep fsPromises.mkdtemp() Method small. Vikram should finish fetch a user then marks in a few lines, not a 40-line dump.

Skip fsPromises.mkdtemp() Method and unhandled rejection shows up in an API handler.

Vikram ships fsPromises.mkdtemp() Method in an API handler. That is the use case worth saying.

If fetch a user then marks breaks under fsPromises.mkdtemp() Method, check unhandled rejection first.

fsPromises.mkdtemp() Method is not a lonely heading. Vikram ties it to fetch a user then marks.

Viva for fsPromises.mkdtemp() Method — what it is → async function + try/catch → the mistake (unhandled rejection).

Exam tip

Say fsPromises.mkdtemp() Method in one breath, then async function + try/catch, then unhandled rejection.

Example

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

Short notes

DeffsPromises.mkdtemp() Method — Vikram uses it for fetch a user then marks in an API handler.
RulefsPromises.mkdtemp() Method → async function + try/catch.
RememberfsPromises.mkdtemp() Method + npm (an API handler).
UsefsPromises.mkdtemp() Method in an API handler (fetch a user then marks).
TrapfsPromises.mkdtemp() Method — unhandled rejection.
ExfsPromises.mkdtemp() Method → fetch a user then marks.

// fsPromises.mkdtemp() 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.mkdtemp() Method

Example

Short notes

Questions

fsPromises.mkdtemp() Method

Example

Short notes

Questions