React native box show Shadow properties

Box Shadow RN.js

// Properties need to obtain a box shadow effect in React native

const shadow = {
  elevation: 4,
  shadowOffset: { width: 3, height: 5 },
  shadowColor: '#ccc',
  shadowOpacity: 0.2,
  shadowRadius: 10
};

const shadow2 = {
  shadowColor: '#171717',
  shadowOffset: { width: -2, height: 4 },
  shadowOpacity: 0.2,
  shadowRadius: 3
};

// This is more preferable
const shadow3 = {
  shadowColor: '#00000090',
  shadowOffset: { width: 0, height: RFValue(3) },
  shadowRadius: 8,
  shadowOpacity: 0.2
};