JAVASCRIPT

border react native

button: {  
	borderWidth: 4,
    borderColor: "#20232a",
}

add border to view react native

<View style={{
        width: 250,
        height: 200,
        borderColor: '#FF3D00',
        borderWidth: 5,
      }}>

adding border in react native

borderColor string
borderTopColor string
borderRightColor string
borderBottomColor string
borderLeftColor string
borderRadius number
borderTopLeftRadius number
borderTopRightRadius number
borderBottomLeftRadius number
borderBottomRightRadius number
borderStyle enum('solid', 'dotted', 'dashed')
borderWidth number
borderTopWidth number
borderRightWidth number
borderBottomWidth number
borderLeftWidth number