How do I use enumerations in JavaScript?

How do I use enumerations in JavaScript?

In JavaScript, enumerations can be simulated using objects or the Object.freeze() method. Would you like an example?

Yes, please provide an example of how to create an enumeration.

Sure! You can create an enumeration like this:

const Colors = Object.freeze({
  RED: 'red',
  GREEN: 'green',
  BLUE: 'blue'
});

This creates a constant object with color values that cannot be changed.

How can I use this enumeration in a function?

You can use the enumeration in a function like this:

function getColorName(color) {
  switch(color) {
    case Colors.RED:
      return 'Red';
    case Colors.GREEN:
      return 'Green';
    case Colors.BLUE:
      return 'Blue';
    default:
      return 'Unknown color';
  }
}