JavaScript Masterclass - Zero to Job-Ready with Hands-On Projects - Methods / 039

The lecture explains the concept of methods, highlighting the difference between functions and methods. It demonstrates creating a login method attached to a user object, accessing properties and methods, and using return statements and parameters. The lecture also discusses function keywords and why arrow functions cannot be used in certain contexts, setting the stage for a deeper dive into the 'this' keyword in the next lecture.

What is the main difference between a function and a method?

• A function is only used in mathematical calculations.

• A method cannot return a value.

• A function is always part of an object.

• A method is a function associated with an object.

How do you call a method associated with an object?

• By using the keyword 'call' before the method name.

• By directly writing the method name.

• Using the object's name followed by the method name and parentheses.

• By using square brackets around the method name.

What is required when defining a method with parameters?

• Parameters are optional and can be ignored.

• Parameters can only be numbers.

• Parameters must be defined and values must be provided when calling the method.

• Parameters must be defined but not necessarily used.

What is the purpose of using template literals in methods?

• To define multi-line strings.

• To concatenate strings without using the '+' operator.

• To embed expressions and variables within strings.

• To format numbers as strings.

What is the significance of the 'this' keyword in methods?

• It is a placeholder for any object.

• It is used to access properties of the object the method is called on.

• It is used to declare variables within a method.

• It refers to the global object.

Why can't arrow functions be used to define methods in objects?

• Arrow functions are slower than regular functions.

• Arrow functions cannot return values.

• Arrow functions are not supported in all browsers.

• Arrow functions do not have their own 'this' context.

What happens if you try to access a property using 'this' in a method?

• It will throw an error.

• It will access the property of the object the method is called on.

• It will always return undefined.

• It will access a global variable with the same name.