String enums in Typescript - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a string enum named Color with a member Red assigned to the string "RED".

Typescript

enum Color {
  Red = [1]
}

Drag options to blanks, or click blank then click option'

A"RED"

BRED

C'Red'

DRed

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put quotes around the string value.

Using the enum member name without quotes as the value.

In TypeScript, string enum members must be assigned string literals, so Red = "RED" is correct.

2fill in blank

medium

Complete the code to access the string value of the enum member Color.Green.

Typescript

enum Color {
  Green = "GREEN"
}

const greenValue: string = [1];

Drag options to blanks, or click blank then click option'

AColor[Green]

BColor.Green

CColor.Green()

DColor['Green']()

Attempts:

3 left

💡 Hint

Common Mistakes

Trying to call the enum member as a function.

Using bracket notation without quotes.

To get the string value of an enum member, use dot notation like Color.Green.

3fill in blank

hard

Fix the error in the enum declaration by completing the code to assign string values correctly.

Typescript

enum Direction {
  Up = [1],
  Down = "DOWN"
}

Drag options to blanks, or click blank then click option'

AUP

BUp

C"UP"

D'Up'

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted identifiers as string values.

Mixing single and double quotes inconsistently.

Enum string members must be assigned string literals with quotes, so Up = "UP" is correct.

4fill in blank

hard

Fill both blanks to create a string enum Status with members Active and Inactive assigned to "ACTIVE" and "INACTIVE" respectively.

Typescript

enum Status {
  Active = [1],
  Inactive = [2]
}

Drag options to blanks, or click blank then click option'

A"ACTIVE"

B"INACTIVE"

C'INACTIVE'

D'ACTIVE'

Attempts:

3 left

💡 Hint

Common Mistakes

Using single quotes inconsistently.

Swapping the values between members.

Enum members must be assigned string literals. Here, Active is assigned "ACTIVE" and Inactive is assigned "INACTIVE".

5fill in blank

hard

Fill all three blanks to create a string enum Response with members Yes, No, and Maybe assigned to "YES", "NO", and "MAYBE" respectively.

Typescript

enum Response {
  Yes = [1],
  No = [2],
  Maybe = [3]
}

Drag options to blanks, or click blank then click option'

A"NO"

B"YES"

C"MAYBE"

D"NOPE"

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the string values for members.

Using incorrect strings like "NOPE".

Assign the correct string literals to each enum member as specified: Yes = "YES", No = "NO", and Maybe = "MAYBE".