Object Literals

This video tutorial introduces object literals in JavaScript, covering how to create and access object properties using dot and bracket notation. It explains adding various data types to objects, including strings, numbers, arrays, and functions. The tutorial also covers the use of the 'this' keyword within objects and demonstrates arrays of objects and basic looping techniques. The video concludes with a brief mention of future topics like constructors and working with dates and times.

What is the purpose of using curly braces when creating an object literal?

• To create an array

• To declare a variable

• To define a function

• To define an object

Which of the following is a correct way to access the 'firstName' property of an object named 'person'?

• person[firstName]

• person.firstName

• person->firstName

• person::firstName

How can you add a function as a property to an object?

• By using the 'new' keyword

• By using the 'function()' syntax without assignment

• By using the 'function' keyword followed by a colon

• By assigning a function directly to a property

Which of the following is a valid way to access the 'state' property of an embedded 'address' object within 'person'?

• person.address.state

• person->address->state

• person::address::state

• person[address][state]

What keyword is used to refer to the current object within a method?

• object

• self

• this

• current

What is the result of calling 'person.getBirthYear()' if the 'age' property is set to 36 and the current year is 2017?

• 1990

• 1980

• 1987

• 1981

How can you iterate over an array of objects to access a specific property of each object?

• Using a while loop

• Using a switch statement

• Using a for loop with array indexing

• Using a do-while loop