Enum Utility

Enum Utility is a utility function that allows you to create enum-like objects with read-only properties in JavaScript.

Installation

You can install Enum Utility using npm:

npm install enum-utility

Usage

// Import the createEnum function
import createEnum from 'enum-utility';

// Create an enum-like object
const colors = createEnum({
  RED: 'red',
  BLUE: 'blue',
  GREEN: 'green',
});

console.log(colors.RED); // Output: red
console.log(colors.BLUE); // Output: blue

API

createEnum(enumObject) Create an enum-like object.

• enumObject (Object): An object containing the enum values by thier keys.

Returns: A Proxy object that allows accessing the enum values by their keys.

Throws:

• Error if enumObject is not an object.
• Error if enumObject is empty.
• Error if values in enumObject are not strings or numbers.
• Error if accessing a key that doesn't exist in the enum.
• Error if attempting to set a value (enum is read-only).

Examples

import createEnum from 'enum-utility';

const daysOfWeek = createEnum({
  SUNDAY: 'sunday',
  MONDAY: 'monday',
  TUESDAY: 'tuesday',
  // ... and so on
});

console.log(daysOfWeek.SUNDAY); // Output: sunday
console.log(daysOfWeek.WEDNESDAY); // Throws an Error: Invalid key, WEDNESDAY does not exist

License

MIT License

Copyright (c) 2023 Khalid M. Sheet

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.