Node.js · Theory

Difference between on() and add.listener() function in Node.js

Theory

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Difference between on() and add.listener() function in Node.js

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Exam tip

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Example

// Difference between on() and add.listener() 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));

Difference between on() and add.listener() function in Node.js: find user 2, then list names. Say both prints.

Short notes

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Difference between on() and add.listener() function in Node.js

Without Difference between on() and add.listener() function (in node js), a first job task gets messy and Difference between on and add.listener function in node js on Asha's board is hard to trust.

Difference between on() and add.listener() function (in node js) trap: copy-pasting Difference between on and add.listener function in node js without a dry-run. Asha loses marks for that every viva.

After Difference between on() and add.listener() function (in node js), Asha should still remember copy-pasting Difference between on and add.listener function in node js without a dry-run.

Exam tip

// Difference between on() and add.listener() 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));

Difference between on() and add.listener() function in Node.js

Example

Short notes

Questions

Difference between on() and add.listener() function in Node.js

Example

Short notes

Questions