Numeric keybosrd

[jinweihuang20]

let keyboard = new Keyboard({
onChange: input => onChange(input),
onKeyPress: button => onKeyPress(button),
layout: {
default: ["1 2 3", "4 5 6", "7 8 9", "{shift} 0 _", "{bksp}"],
shift: ["! / #", "$ % ^", "& * (", "{shift} ) +", "{bksp}"]
},
theme: "hg-theme-default hg-layout-numeric numeric-theme"
});