+
+ 
+
+
+ );
+}
+
+export default App;
diff --git a/src/App.test.js b/src/App.test.js
new file mode 100644
index 0000000..7916a0b
--- /dev/null
+++ b/src/App.test.js
@@ -0,0 +1,15 @@
+import React from 'react';
+import { render } from '@testing-library/react';
+import { Provider } from 'react-redux';
+import store from './app/store';
+import App from './App';
+
+test('renders learn react link', () => {
+ const { getByText } = render(
+
+
+ );
+}
diff --git a/src/features/counter/Counter.module.css b/src/features/counter/Counter.module.css
new file mode 100644
index 0000000..7397ca6
--- /dev/null
+++ b/src/features/counter/Counter.module.css
@@ -0,0 +1,74 @@
+.row {
+ display: flex;
+ align-items: center;
+ justify-content: center;
+}
+
+.row:not(:last-child) {
+ margin-bottom: 16px;
+}
+
+.value {
+ font-size: 78px;
+ padding-left: 16px;
+ padding-right: 16px;
+ margin-top: 2px;
+ font-family: 'Courier New', Courier, monospace;
+}
+
+.button {
+ appearance: none;
+ background: none;
+ font-size: 32px;
+ padding-left: 12px;
+ padding-right: 12px;
+ outline: none;
+ border: 2px solid transparent;
+ color: rgb(112, 76, 182);
+ padding-bottom: 4px;
+ cursor: pointer;
+ background-color: rgba(112, 76, 182, 0.1);
+ border-radius: 2px;
+ transition: all 0.15s;
+}
+
+.textbox {
+ font-size: 32px;
+ padding: 2px;
+ width: 64px;
+ text-align: center;
+ margin-right: 8px;
+}
+
+.button:hover, .button:focus {
+ border: 2px solid rgba(112, 76, 182, 0.4);
+}
+
+.button:active {
+ background-color: rgba(112, 76, 182, 0.2);
+}
+
+.asyncButton {
+ composes: button;
+ position: relative;
+ margin-left: 8px;
+}
+
+.asyncButton:after {
+ content: "";
+ background-color: rgba(112, 76, 182, 0.15);
+ display: block;
+ position: absolute;
+ width: 100%;
+ height: 100%;
+ left: 0;
+ top: 0;
+ opacity: 0;
+ transition: width 1s linear, opacity 0.5s ease 1s;
+}
+
+.asyncButton:active:after {
+ width: 0%;
+ opacity: 1;
+ transition: 0s
+}
diff --git a/src/features/counter/counterSlice.js b/src/features/counter/counterSlice.js
new file mode 100644
index 0000000..6ed42b7
--- /dev/null
+++ b/src/features/counter/counterSlice.js
@@ -0,0 +1,42 @@
+import { createSlice } from '@reduxjs/toolkit';
+
+export const counterSlice = createSlice({
+ name: 'counter',
+ initialState: {
+ value: 0,
+ },
+ reducers: {
+ increment: state => {
+ // Redux Toolkit allows us to write "mutating" logic in reducers. It
+ // doesn't actually mutate the state because it uses the Immer library,
+ // which detects changes to a "draft state" and produces a brand new
+ // immutable state based off those changes
+ state.value += 1;
+ },
+ decrement: state => {
+ state.value -= 1;
+ },
+ incrementByAmount: (state, action) => {
+ state.value += action.payload;
+ },
+ },
+});
+
+export const { increment, decrement, incrementByAmount } = counterSlice.actions;
+
+// The function below is called a thunk and allows us to perform async logic. It
+// can be dispatched like a regular action: `dispatch(incrementAsync(10))`. This
+// will call the thunk with the `dispatch` function as the first argument. Async
+// code can then be executed and other actions can be dispatched
+export const incrementAsync = amount => dispatch => {
+ setTimeout(() => {
+ dispatch(incrementByAmount(amount));
+ }, 1000);
+};
+
+// The function below is called a selector and allows us to select a value from
+// the state. Selectors can also be defined inline where they're used instead of
+// in the slice file. For example: `useSelector((state) => state.counter.value)`
+export const selectCount = state => state.counter.value;
+
+export default counterSlice.reducer;
diff --git a/src/index.css b/src/index.css
new file mode 100644
index 0000000..ec2585e
--- /dev/null
+++ b/src/index.css
@@ -0,0 +1,13 @@
+body {
+ margin: 0;
+ font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+ 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+ sans-serif;
+ -webkit-font-smoothing: antialiased;
+ -moz-osx-font-smoothing: grayscale;
+}
+
+code {
+ font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
+ monospace;
+}
diff --git a/src/index.js b/src/index.js
new file mode 100644
index 0000000..72db135
--- /dev/null
+++ b/src/index.js
@@ -0,0 +1,21 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+import './index.css';
+import App from './App';
+import store from './app/store';
+import { Provider } from 'react-redux';
+import * as serviceWorker from './serviceWorker';
+
+ReactDOM.render(
+
+
+ {count}
+
+
+
+ setIncrementAmount(e.target.value)}
+ />
+
+
+
+