Margin or Padding Shorthand in React Native

I created this helper function in a past project:

const getShortHand = (style: string, ...values) => {
  if (values.length === 1) {
    return { [style]: values[0] }
  }
  const _genCss = (...values) => ({
    [style + 'Top']: values[0],
    [style + 'Right']: values[1],
    [style + 'Bottom']: values[2],
    [style + 'Left']: values[3],
  })
  if (values.length === 2) {
    return _genCss(values[0], values[1], values[0], values[1])
  }
  if (values.length === 3) {
    return _genCss(values[0], values[1], values[2], values[1])
  }
  return _genCss(values[0], values[1], values[2], values[3])
}

export const padding = (...values: Array<number | string>) => getShortHand('padding', ...values)
export const margin = (...values: Array<number | string>) => getShortHand('margin', ...values)

The usage is similar with the normal css shorthand:

const styles = StyleSheet.create({
  button: {
    ...padding(12, 20),
  },
}

When using plain React Native styles you can rewrite your css above to

{
  marginVertical: 10,
  marginHorizontal: 20
}

Otherwise the above syntax can be achieved if you're using something like styled-components, which uses css-to-react-native under the hood.