Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js

Error.captureStackTrace((argetObject[, constructorOpt]) function is a Node.js topic. In plain words you use it for a short Error.captureStackTraceargetObject[, constructorOpt] function example in a script or API on localhost. Don’t start with a slogan — start with that picture.

Smallest example: the smallest Error.captureStackTraceargetObject[, constructorOpt] function example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Error.captureStackTrace((argetObject[, constructorOpt]) function.

From the example next to this theory: Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js: find user 2, then list names. Say both prints..

Trap: only saying “Error.captureStackTraceargetObject[, constructorOpt] function” with no example. Fix that before you talk about advanced Node.js.

Viva: what is Error.captureStackTrace((argetObject[, constructorOpt]) function? Then show the smallest Error.captureStackTraceargetObject[, constructorOpt] function example you can type. Then name the trap.

Exam tip

What is Error.captureStackTrace((argetObject[, constructorOpt]) function? Show this: the smallest Error.captureStackTraceargetObject[, constructorOpt] function example you can type. Trap: only saying “Error.captureStackTraceargetObject[, constructorOpt] function” with no example.

Example

// Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js
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));

Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js: find user 2, then list names. Say both prints.

Short notes

DefError.captureStackTrace((argetObject[, constructorOpt]) function — a short Error.captureStackTraceargetObject[, constructorOpt] function example in a script or API on localhost.
Rulethe smallest Error.captureStackTraceargetObject[, constructorOpt] function example you can type
Traponly saying “Error.captureStackTraceargetObject[, constructorOpt] function” with no example
Usea script or API on localhost

Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js

From the example next to this theory: Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js: find user 2, then list names. Say both prints..

Trap: only saying “Error.captureStackTraceargetObject[, constructorOpt] function” with no example. Fix that before you talk about advanced Node.js.

Exam tip

Example

// Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js
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));

Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js: find user 2, then list names. Say both prints.

Short notes

DefError.captureStackTrace((argetObject[, constructorOpt]) function — a short Error.captureStackTraceargetObject[, constructorOpt] function example in a script or API on localhost.
Rulethe smallest Error.captureStackTraceargetObject[, constructorOpt] function example you can type
Traponly saying “Error.captureStackTraceargetObject[, constructorOpt] function” with no example
Usea script or API on localhost

Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js

Example

Short notes

Questions

Error.captureStackTrace((argetObject[, constructorOpt]) function in Node.js

Example

Short notes

Questions