What is the point of StyleSheet.create

Question

I\'m reading the React Native docs / tutorial, and I\'m wondering what the point of the StyleSheet.create function is.

For example, the tutorial has the

Answer 1

StyleSheet.create does not add performance gains anymore.

https://github.com/DefinitelyTyped/DefinitelyTyped/issues/29265#issuecomment-430783289

quoting the github comment:

@alloy I understand what docs says, but can prove that code:

const myStyle: ViewStyle = { flex: 1 } export const FlexView:
React.SFC = (props) => {props.children}

has almost same performance (even slightly faster) compared to

const s = StyleSheet.create({ flex: { flex: 1 } }) 
export const FlexView: React.SFC = (props) => {props.children} 

because if you look at sources, you discover that latest chunk effectively extracted to this (see: https://github.com/facebook/react-native/blob/0.57-stable/Libraries/StyleSheet/StyleSheet.js#L373):

const s = { flex: { flex: 1 } }
export const FlexView = (props) => {props.children}

And yes, in previous versions of RN it was global registry of styles, but it was even more slow, because it never crossed bridge border actually (proof from 0.55 branch)