Modern JavaScript from the Beginning - Second Edition - Object Spread Operator and Methods

The video tutorial covers creating objects in JavaScript using literals and constructors, utilizing the spread operator for combining objects, and exploring object methods like assign. It also delves into working with arrays of objects, accessing properties, and using methods such as keys, values, entries, and hasOwnProperty. The tutorial aims to familiarize viewers with these concepts, preparing them for more advanced topics like destructuring.

What is one way to create an object in JavaScript?

• Using a function

• Using a number

• Using an object literal

• Using a string

How can you add a property to an existing object?

• By using the 'concat' method

• By using the 'add' method

• By using the 'push' method

• By directly assigning a value to a new key

What is the correct way to access a nested property in an object?

• Using a loop

• Using dot notation

• Using a function

• Using a string

What does the spread operator do when used with objects?

• It deletes properties

• It combines properties into a new object

• It duplicates the object

• It sorts the properties

Which method was used before the spread operator to combine objects?

• Object.combine

• Object.assign

• Object.merge

• Object.concat

How can you access the first object in an array of objects?

• Using the 'first' method

• Using the index 0

• Using the 'find' method

• Using the 'get' method

What method can be used to get all keys of an object?

• Object.listKeys

• Object.allKeys

• Object.getKeys

• Object.keys

Which method returns an array of an object's values?

• Object.values

• Object.entries

• Object.getValues

• Object.listValues

What does Object.entries return?

• An array of methods

• An array of key-value pairs

• An array of keys

• An array of values

How can you check if an object has a specific property?

• Using the 'checkProperty' method

• Using the 'hasProperty' method

• Using the 'findProperty' method

• Using the 'hasOwnProperty' method