Is it possible to run 2 functions in props of a component?

Question

React

<Button
                  style={styles.addFotoBtn}
                  onPress={() => Actions.CheckIn(); () => this.props.onModalOut() }
              >

Answer 1

<Button
     style={styles.addFotoBtn}
     onPress={this.handleOnPress}
>

in the class a new method that combines both

handleOnPress = () => {
    Actions.CheckIn(); 
    this.props.onModalOut()
}