Enum member access in Typescript - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to access the enum member.

Typescript

enum Color { Red, Green, Blue }
const favorite = Color.[1];

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AYellow

BRed

CPink

DOrange

Attempts:

3 left

💡 Hint

Common Mistakes

Using a name not declared in the enum.

Trying to access enum members as strings.

The enum member Red is accessed using Color.Red.

2fill in blank

medium

Complete the code to get the numeric value of the enum member.

Typescript

enum Direction { Up = 1, Down, Left, Right }
const dirValue = Direction.[1];

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AUp

BSideways

CBackward

DForward

Attempts:

3 left

💡 Hint

Common Mistakes

Using a member name not in the enum.

Confusing string values with numeric enum values.

The enum member Up has the numeric value 1, accessed by Direction.Up.

3fill in blank

hard

Fix the error in accessing the enum member.

Typescript

enum Status { Active = 'ACTIVE', Inactive = 'INACTIVE' }
const currentStatus = Status.[1];

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AInactivee

Bactive

CACTIVE

DInactive

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase or uppercase strings instead of enum member names.

Misspelling the enum member name.

Enum members are case-sensitive. The correct member is Inactive, not active or ACTIVE.

4fill in blank

hard

Fill both blanks to access the enum member and get its value.

Typescript

enum Fruit { Apple = 5, Banana = 10 }
const fruitName = Fruit.[1];
const fruitValue = Fruit.[2];

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AApple

BBanana

COrange

DGrape

Attempts:

3 left

💡 Hint

Common Mistakes

Using names not declared in the enum.

Mixing up member names and values.

Fruit.Apple and Fruit.Banana access the enum members correctly.

5fill in blank

hard

Fill all three blanks to create an enum, access a member, and get its value.

Typescript

enum Vehicle { [1] = 1, [2] = 2, [3] = 3 }
const myVehicle = Vehicle.Car;

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ACar

BBike

CTruck

DPlane

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid or duplicate member names.

Not assigning values to enum members.

The enum members are Car, Bike, and Truck. They are assigned values 1, 2, and 3 respectively.