A awesome calculator that simulates a Mac style. Source code is written by Typescript language.
Visit here Demo.
If you are interested in this, you can clone this repository and make some changes. After you modified calculator.ts file, you should use tsc command line tool to covert it so that you can run your code in browser.
npm i -g typescript ts-node
// after you modified .ts file, use this command covert it to .js file
tsc ./calculator.ts
Have fun.
MIT