Undefined is not an object evaluating this.state.*

Question

I\'m having an issue with posting data to an express REST API I have using fetch in my react-native app. Here\'s my code:

/**
 * Sample React Na         


        

Answer 1

React handlers are not automatically bound to the element/class they are in.

Add data

https://facebook.github.io/react/docs/handling-events.html

Excerpt from above link

// This syntax ensures `this` is bound within handleClick
return (
   this.handleClick(e)}>
    Click me
  
);