very nice

It would be nice if this kata didn't force people to use outdated class components

This solution works but will not pass the tests

import React from 'react';

export class Counter extends React.Component {
constructor(props) {
// Your state
super(props);
this.state = {counter: 0};

this.handleClick = this.handleClick.bind(this);   

}

handleClick(event) {

const target = event.target;
const name = target.id;
var count = parseInt(target.value);
const newCount = name === 'decrement' ? count += -1 : count += 1;

this.setState({
  counter: newCount
});

}

// Your event handlers
render() {
return (

yea, struggled with that too for the ungodly amount of time until realized that i am missing ids which i didnt think this kata checks for...Had to look at test cases to figure it out. good learning experience though!

Thanks for the suggestion, I've added tests for the existence of those id's so it should give better errors now!

I think in this kata it's more helpful to have separate tests for the existence of #counter, #increment and #decrement, otherwise there are errors when they're used and the error message is quite cryptic.

excecuteRender function removed from the tests.

Thanks, added docs to the readme and removed the onClick handlers from the initial solution.

I noticed in the start solution file the onClick handlers are set on the button.
I was thinking they should be removed and let the trainee implement them on the button so they can try themselves. I think this will provide better learning.
Also explaining more about ReactJS event handles in the description with an example to help the trainee.

The React docs has good examples about events https://reactjs.org/docs/handling-events.html

Noticed the function executeRender in the test is not used.