---
id: 5a24c314108439a4d4036177
title: Write a Simple Counter
challengeType: 6
forumTopicId: 301425
dashedName: write-a-simple-counter
---
# --description--
You can design a more complex stateful component by combining the concepts covered so far. These include initializing `state`, writing methods that set `state`, and assigning click handlers to trigger these methods.
# --instructions--
The `Counter` component keeps track of a `count` value in `state`. There are two buttons which call methods `increment()` and `decrement()`. Write these methods so the counter value is incremented or decremented by 1 when the appropriate button is clicked. Also, create a `reset()` method so when the reset button is clicked, the count is set to 0.
**Note:** Make sure you don't modify the `className`s of the buttons. Also, remember to add the necessary bindings for the newly-created methods in the constructor.
# --hints--
`Counter` should return a `div` element which contains three buttons with text content in this order `Increment!`, `Decrement!`, `Reset`.
```js
assert(
(() => {
const mockedComponent = Enzyme.mount(React.createElement(Counter));
return (
mockedComponent.find('.inc').text() === 'Increment!' &&
mockedComponent.find('.dec').text() === 'Decrement!' &&
mockedComponent.find('.reset').text() === 'Reset'
);
})()
);
```
The state of `Counter` should initialize with a `count` property set to `0`.
```js
const mockedComponent = Enzyme.mount(React.createElement(Counter));
assert(mockedComponent.find('h1').text() === 'Current Count: 0');
```
Clicking the increment button should increment the count by `1`.
```js
const mockedComponent = Enzyme.mount(React.createElement(Counter));
mockedComponent.find('.inc').simulate('click');
assert(mockedComponent.find('h1').text() === 'Current Count: 1');
```
Clicking the decrement button should decrement the count by `1`.
```js
const mockedComponent = Enzyme.mount(React.createElement(Counter));
mockedComponent.find('.dec').simulate('click');
assert(mockedComponent.find('h1').text() === 'Current Count: -1');
```
Clicking the reset button should reset the count to `0`.
```js
const mockedComponent = Enzyme.mount(React.createElement(Counter));
mockedComponent.setState({ count: 5 });
const currentCountElement = mockedComponent.find('h1');
assert(currentCountElement.text() === 'Current Count: 5');
mockedComponent.find('.reset').simulate('click');
assert(currentCountElement.text() === 'Current Count: 0');
```
# --seed--
## --after-user-code--
```jsx
ReactDOM.render(