npm i mini-number-keyboard --save
import MiniKeyboard from 'mini-number-keyboard'
or
<script src="/node_modules/mini-number-keyboard/dist/keyboard.min.js"></srcipt>
<div id="container" class="keyboard-container"></div>
<script>
let keyboard = new MiniKeyboard({
container: 'container'
})
keyboard.on('keydown', function(key) {
console.log(key)
})
</script>