Getters and Setters — JS Technical Interview Questions & Answers

Computed properties with get/set.

Getters and Setters

  • Getters and Setters (js) is a JS topic. In plain words you use it for a short Getters and Setters js example in a script in the browser. Don’t start with a slogan — start with that picture.
  • Smallest example: the smallest Getters and Setters js example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Getters and Setters (js).
  • From the example next to this theory: Computed properties with get/set.
  • Trap: only saying “Getters and Setters js” with no example. Fix that before you talk about advanced JS.
  • Viva: what is Getters and Setters (js)? Then show the smallest Getters and Setters js example you can type. Then name the trap.

Technical Interview Tip: What is Getters and Setters (js)? Show this: the smallest Getters and Setters js example you can type. Trap: only saying “Getters and Setters js” with no example.

Code Examples for Getters and Setters

Getters and Setters — working example

const user = {
  name: "Ada",
  city: "Pune",
  skills: ["JS"],
  get label() {
    return this.name + " @" + this.city;
  },
};
user.skills.push("SQL");
user["role"] = "dev";
console.log(user.label, user.skills);

function Person(name) {
  this.name = name;
}
const p = new Person("Lin");
console.log(p.name);

const config = Object.freeze({ theme: "light" });
// config.theme = "dark"; // TypeError in strict mode
console.log(config.theme);

Getters and Setters — objects store keyed values; constructors make instances; getters compute; freeze/seal lock mutation.

How to Explain Getters and Setters to an Interviewer

What is Getters and Setters (js)?

Used for a short Getters and Setters js example a script in the browser Not just the heading

Give one small example of Getters and Setters (js).

the smallest Getters and Setters js example you can type Computed properties with get/set

What mistake do beginners make with Getters and Setters (js)?

only saying “Getters and Setters js” with no example Show the fix

Where do you use Getters and Setters (js)?

a script in the browser a short Getters and Setters js example