JavaScript Object Methods — Quick Revision ✨

Objects in JavaScript can have methods (functions as properties).

They allow objects to perform actions and work with their own data using this.

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🔑 Key Points

• A method is simply a function stored inside an object.
• Use this to access properties inside methods.
• You can add methods dynamically even after creating an object.

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🧩 Examples

1. Defining a method

const user = {
  name: "Usama",
  age: 22,
  greet: function () {
    return `Hello, my name is ${this.name} and I am ${this.age} years old.`;
  },
};

console.log(user.greet());
// Hello, my name is Usama and I am 22 years old.

`

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2. Adding a method dynamically

`js
user.setAge = function (newAge) {
this.age = newAge;
};

user.setAge(25);
console.log(user.age); // 25
`

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3. Checking conditions with a method

`js
user.isAdult = function () {
return this.age >= 18;
};

console.log(user.isAdult()); // true
`

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4. Returning details

js
user.getDetails = function () {
return${this.name}, ${this.age} years old.`;
};

console.log(user.getDetails());
// Usama, 25 years old.
`

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📌 Summary

• Methods = functions inside objects.
• this = current object reference.
• You can create, update, or add methods at any time.

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💡 Save this as your cheat sheet and practice often!
What’s your favorite trick with object methods? Drop it in the comments 👇

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