text shadow in react native

CSS text-shadow has the below syntax,

text-shadow: h-shadow v-shadow blur-radius color|none|initial|inherit;

To achieve similar effect with the css you provided you can use something like this,

// text-shadow: -1px 1px 10px rgba(0, 0, 0, 0.75)

{
  textShadowColor: 'rgba(0, 0, 0, 0.75)',
  textShadowOffset: {width: -1, height: 1},
  textShadowRadius: 10
}