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What is a String Enum?

Part of the Introduction To TypeScript section of Coddy's JavaScript journey — lesson 53 of 73.

String enums are declared by explicitly initializing each member with a string value:

enum Direction {
  Up = "UP",
  Down = "DOWN", 
  Left = "LEFT",
  Right = "RIGHT"
}

Unlike numeric enums that auto-increment, every member in a string enum must be explicitly initialized. The benefit is immediately clear when debugging - instead of seeing mysterious numbers like 0 or 1 in your logs, you'll see descriptive values like "UP" or "DOWN".

Challenge

Easy

Create a string enum named Direction with four members:

Up initialized to "UP"
Down initialized to "DOWN"
Left initialized to "LEFT"
Right initialized to "RIGHT"

Create four variables to demonstrate the enum values:

upDirection of type Direction and assign it Direction.Up
downDirection of type Direction and assign it Direction.Down
leftDirection of type Direction and assign it Direction.Left
rightDirection of type Direction and assign it Direction.Right

Print the following outputs on separate lines:

Print the value of upDirection
Print the value of downDirection
Print the value of leftDirection
Print the value of rightDirection
Print the string value of Direction.Up
Print the string value of Direction.Down

Try it yourself

// TODO: Write your code here

// Print the required outputs

Test yourself

This lesson includes a short quiz. Start the lesson to answer it and track your progress.

All lessons in Introduction To TypeScript