Started with Mongo

This commit is contained in:
Riccardo
2021-01-02 13:11:59 +01:00
parent 5294122f61
commit 30407cac0a
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# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
# dependencies
/node_modules
/.pnp
.pnp.js
# testing
/coverage
# production
/build
# misc
.DS_Store
.env.local
.env.development.local
.env.test.local
.env.production.local
npm-debug.log*
yarn-debug.log*
yarn-error.log*

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# Getting Started with Create React App
This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
## Available Scripts
In the project directory, you can run:
### `yarn start`
Runs the app in the development mode.\
Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
The page will reload if you make edits.\
You will also see any lint errors in the console.
### `yarn test`
Launches the test runner in the interactive watch mode.\
See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
### `yarn build`
Builds the app for production to the `build` folder.\
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.\
Your app is ready to be deployed!
See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
### `yarn eject`
**Note: this is a one-way operation. Once you `eject`, you cant go back!**
If you arent satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point youre on your own.
You dont have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldnt feel obligated to use this feature. However we understand that this tool wouldnt be useful if you couldnt customize it when you are ready for it.
## Learn More
You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
To learn React, check out the [React documentation](https://reactjs.org/).
### Code Splitting
This section has moved here: [https://facebook.github.io/create-react-app/docs/code-splitting](https://facebook.github.io/create-react-app/docs/code-splitting)
### Analyzing the Bundle Size
This section has moved here: [https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size](https://facebook.github.io/create-react-app/docs/analyzing-the-bundle-size)
### Making a Progressive Web App
This section has moved here: [https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app](https://facebook.github.io/create-react-app/docs/making-a-progressive-web-app)
### Advanced Configuration
This section has moved here: [https://facebook.github.io/create-react-app/docs/advanced-configuration](https://facebook.github.io/create-react-app/docs/advanced-configuration)
### Deployment
This section has moved here: [https://facebook.github.io/create-react-app/docs/deployment](https://facebook.github.io/create-react-app/docs/deployment)
### `yarn build` fails to minify
This section has moved here: [https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify](https://facebook.github.io/create-react-app/docs/troubleshooting#npm-run-build-fails-to-minify)

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{
"name": "client",
"version": "0.1.0",
"private": true,
"dependencies": {
"@apollo/client": "^3.3.6",
"@testing-library/jest-dom": "^5.11.4",
"@testing-library/react": "^11.1.0",
"@testing-library/user-event": "^12.1.10",
"graphql": "^15.4.0",
"react": "^17.0.1",
"react-dom": "^17.0.1",
"react-router": "^5.2.0",
"react-router-dom": "^5.2.0",
"react-scripts": "4.0.1",
"subscriptions-transport-ws": "^0.9.18",
"web-vitals": "^0.2.4"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test",
"eject": "react-scripts eject"
},
"eslintConfig": {
"extends": [
"react-app",
"react-app/jest"
]
},
"browserslist": {
"production": [
">0.2%",
"not dead",
"not op_mini all"
],
"development": [
"last 1 chrome version",
"last 1 firefox version",
"last 1 safari version"
]
}
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
<!-- <link rel="stylesheet" href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css" /> -->
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta name="description" content="Web site created using create-react-app" />
<link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
<!--
manifest.json provides metadata used when your web app is installed on a
user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
-->
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<!--
Notice the use of %PUBLIC_URL% in the tags above.
It will be replaced with the URL of the `public` folder during the build.
Only files inside the `public` folder can be referenced from the HTML.
Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
work correctly both with client-side routing and a non-root public URL.
Learn how to configure a non-root public URL by running `npm run build`.
-->
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
<!--
This HTML file is a template.
If you open it directly in the browser, you will see an empty page.
You can add webfonts, meta tags, or analytics to this file.
The build step will place the bundled scripts into the <body> tag.
To begin the development, run `npm start` or `yarn start`.
To create a production bundle, use `npm run build` or `yarn build`.
-->
</body>
</html>

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{
"short_name": "React App",
"name": "Create React App Sample",
"icons": [
{
"src": "favicon.ico",
"sizes": "64x64 32x32 24x24 16x16",
"type": "image/x-icon"
},
{
"src": "logo192.png",
"type": "image/png",
"sizes": "192x192"
},
{
"src": "logo512.png",
"type": "image/png",
"sizes": "512x512"
}
],
"start_url": ".",
"display": "standalone",
"theme_color": "#000000",
"background_color": "#ffffff"
}

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# https://www.robotstxt.org/robotstxt.html
User-agent: *
Disallow:

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// import logo from './../logo.svg';
// import './../styles/App.css';
import React, { Component } from 'react';
import AppointmentList from './AppointmentList';
import CreateLink from './CreateAppointment'
import Header from './Header';
import Login from './Login'
import Search from './Search';
import { Redirect, Route, Switch } from 'react-router-dom';
const App = () => {
return (
<div className="center w85">
<Header />
<div className="ph3 pv1 background-gray">
<Switch>
<Route exact path="/" component={AppointmentList} />
<Route
exact
path="/create"
component={CreateLink}
/>
<Route exact path="/login" component={Login} />
<Route exact path="/search" component={Search} />
<Route
exact
path="/new/:page"
component={AppointmentList}
/>
</Switch>
</div>
</div>
);
};
// class App extends Component {
// render() {
// return <CreateLink />;
// }
// }
// function App() {
// return (
// <div className="App">
// <header className="App-header">
// <img src={logo} className="App-logo" alt="logo" />
// <p>
// Edit <code>src/App.js</code> and save to reload.
// </p>
// <a
// className="App-link"
// href="https://reactjs.org"
// target="_blank"
// rel="noopener noreferrer"
// >
// Learn React
// </a>
// </header>
// </div>
// );
// }
export default App;

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import { render, screen } from '@testing-library/react';
import App from './App';
test('renders learn react link', () => {
render(<App />);
const linkElement = screen.getByText(/learn react/i);
expect(linkElement).toBeInTheDocument();
});

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import React from 'react';
import { useMutation, gql } from '@apollo/client';
import { AUTH_TOKEN, APPOINTMENTS_PER_PAGE } from '../constants';
import { timeDifferenceForDate } from '../utils'
import { FEED_QUERY } from './AppointmentList'
const FOLLOW_MUTATION = gql`
mutation FollowMutation($appointmentId: ID!) {
follow(followId: $followId) {
id
appointment {
id
follows {
id
user {
id
}
}
}
user {
id
}
}
}
`;
const take = APPOINTMENTS_PER_PAGE;
const skip = 0;
const orderBy = { createdAt: 'desc' };
const Appointment = (props) => {
const { appointment } = props;
const authToken = localStorage.getItem(AUTH_TOKEN);
const take = APPOINTMENTS_PER_PAGE;
const skip = 0;
const orderBy = { createdAt: 'desc' };
const [follow] = useMutation(FOLLOW_MUTATION, {
variables: {
appointmentId: appointment.id
},
update(cache, { data: { follow } }) {
const { feed } = cache.readQuery({
query: FEED_QUERY
});
const updatedAppointments = feed.follows.map((feedFollow) => {
if (feedFollow.id === appointment.id) {
return {
...feedFollow,
follows: [...feedFollow.follows, follow]
};
}
return feedFollow;
});
cache.writeQuery({
query: FEED_QUERY,
data: {
feed: {
appointments: updatedAppointments
}
}
});
}
});
return (
<div className="flex mt2 items-start">
<div className="flex items-center">
<span className="gray">{props.index + 1}.</span>
{authToken && (
<div
className="ml1 gray f11"
style={{ cursor: 'pointer' }}
onClick={follow}
>
</div>
)}
</div>
<div className="ml1">
<div>
{appointment.title} ({appointment.description})
</div>
{authToken && (
<div className="f6 lh-copy gray">
{appointment.follows.length} follows | by{' '}
{follow.createdBy ? follow.createdBy.name : 'Unknown'}{' '}
{timeDifferenceForDate(appointment.createdAt)}
</div>
)}
</div>
</div>
);
};
export default Appointment;

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import React from 'react';
import Appointment from './Appointment';
import { useHistory } from 'react-router';
import { APPOINTMENTS_PER_PAGE } from '../constants';
import { useQuery, gql } from '@apollo/client';
import { Link } from 'react-router-dom';
export const FEED_QUERY = gql`
query FeedQuery(
$take: Int
$skip: Int
$orderBy: AppointmentOrderByInput
) {
feed(take: $take, skip: $skip, orderBy: $orderBy) {
id
appointments {
id
createdAt
title
start
end
description
createdBy {
id
name
}
follows {
id
user {
id
}
}
}
count
}
}
`;
const NEW_APPOINTMENTS_SUBSCRIPTION = gql`
subscription {
newAppointment {
id
url
description
createdAt
createdBy {
id
name
}
follows {
id
user {
id
}
}
}
}
`;
const getQueryVariables = (isNewPage, page) => {
const skip = isNewPage ? (page - 1) * APPOINTMENTS_PER_PAGE : 0;
const take = isNewPage ? APPOINTMENTS_PER_PAGE : 100;
const orderBy = { createdAt: 'desc' };
console.log(isNewPage, page, APPOINTMENTS_PER_PAGE, skip, take, orderBy);
return { take, skip, orderBy };
};
const AppointmentList = () => {
const history = useHistory();
const isNewPage = history.location.pathname.includes(
'new'
);
const pageIndexParams = history.location.pathname.split(
'/'
);
const page = parseInt(
pageIndexParams[pageIndexParams.length - 1]
);
console.log(pageIndexParams.length, page);
const pageIndex = page ? (page - 1) * APPOINTMENTS_PER_PAGE : 0;
const {
data,
loading,
error,
subscribeToMore
} = useQuery(FEED_QUERY, {
variables: getQueryVariables(isNewPage, page)
});
// const { data } = useQuery(FEED_QUERY);
const getAppointmentsToRender = (isNewPage, data) => {
if (isNewPage) {
return data.feed.appointments;
}
const rankedAppointments = data.feed.appointments.slice();
rankedAppointments.sort(
(l1, l2) => l2.follows.length - l1.follows.length
);
return rankedAppointments;
};
subscribeToMore({
document: NEW_APPOINTMENTS_SUBSCRIPTION,
updateQuery: (prev, { subscriptionData }) => {
if (!subscriptionData.data) return prev;
const newAppointment = subscriptionData.data.newAppointment;
const exists = prev.feed.appointments.find(
({ id }) => id === newAppointment.id
);
if (exists) return prev;
return Object.assign({}, prev, {
feed: {
appointments: [newAppointment, ...prev.feed.appointments],
count: prev.feed.appointments.length + 1,
__typename: prev.feed.__typename
}
});
}
});
return (
<>
{loading && <p>Loading...</p>}
{error && <pre>{JSON.stringify(error, null, 2)}</pre>}
{data && (
<>
{getAppointmentsToRender(isNewPage, data).map(
(appointment, index) => (
<Link
key={appointment.id}
link={appointment}
index={index + pageIndex}
/>
)
)}
{isNewPage && (
<div className="flex ml4 mv3 gray">
<div
className="pointer mr2"
onClick={() => {
if (page > 1) {
history.push(`/new/${page - 1}`);
}
}}
>
Previous
</div>
<div
className="pointer"
onClick={() => {
if (
page <=
data.feed.count / APPOINTMENTS_PER_PAGE
) {
const nextPage = page + 1;
history.push(`/new/${nextPage}`);
}
}}
>
Next
</div>
</div>
)}
</>
)}
</>
);
};
export default AppointmentList;

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import React, { useState } from 'react';
import { useHistory } from 'react-router';
import { useMutation, gql } from '@apollo/client';
import { APPOINTMENTS_PER_PAGE } from '../constants';
import { FEED_QUERY } from './AppointmentList';
const CREATE_APPOINTMENT_MUTATION = gql`
mutation CreateAppointmentMutation(
$description: String!
$url: String!
) {
createAppointment(description: $description, url: $url) {
id
createdAt
url
description
}
}
`;
const CreateAppointment = () => {
const history = useHistory();
const [formState, setFormState] = useState({
title: '',
description: '',
start: '',
end: ''
});
const [createAppointment] = useMutation(CREATE_APPOINTMENT_MUTATION, {
variables: {
title: formState.title,
description: formState.description,
start: formState.start,
end: formState.end
},
update: (cache, { data: { createAppointment } }) => {
const take = APPOINTMENTS_PER_PAGE;
const skip = 0;
const orderBy = { createdAt: 'desc' };
const data = cache.readQuery({
query: FEED_QUERY,
variables: {
take,
skip,
orderBy
}
});
cache.writeQuery({
query: FEED_QUERY,
data: {
feed: {
appointments: [createAppointment, ...data.feed.appointments]
}
},
variables: {
take,
skip,
orderBy
}
});
},
onCompleted: () => history.push('/new/1')
});
return (
<div>
<form
onSubmit={(e) => {
e.preventDefault();
createAppointment();
}}
>
<div className="flex flex-column mt3">
<input
className="mb2"
value={formState.title}
onChange={(e) =>
setFormState({
...formState,
title: e.target.value
})
}
type="text"
placeholder="The title for the appointment"
/>
<input
className="mb2"
value={formState.description}
onChange={(e) =>
setFormState({
...formState,
description: e.target.value
})
}
type="text"
placeholder="A description for the appointment"
/>
<input
className="mb2"
value={formState.start}
onChange={(e) =>
setFormState({
...formState,
start: e.target.value
})
}
type="text"
placeholder="The start for the appointment"
/>
<input
className="mb2"
value={formState.end}
onChange={(e) =>
setFormState({
...formState,
end: e.target.value
})
}
type="text"
placeholder="The end for the appointment"
/>
</div>
<button type="submit">Submit</button>
</form>
</div>
);
};
export default CreateAppointment;

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import React from 'react';
import { useHistory } from 'react-router';
import { Link } from 'react-router-dom';
import { AUTH_TOKEN } from '../constants';
const Header = () => {
const history = useHistory();
const authToken = localStorage.getItem(AUTH_TOKEN);
return (
<div className="flex pa1 justify-between nowrap orange">
<div className="flex flex-fixed black">
<div className="fw7 mr1">Hacker News</div>
<Link to="/" className="ml1 no-underline black">
new
</Link>
<div className="ml1">|</div>
<Link to="/top" className="ml1 no-underline black">
top
</Link>
<div className="ml1">|</div>
<Link to="/search" className="ml1 no-underline black">
search
</Link>
{authToken && (
<div className="flex">
<div className="ml1">|</div>
<Link
to="/create"
className="ml1 no-underline black"
>
submit
</Link>
</div>
)}
</div>
<div className="flex flex-fixed">
{authToken ? (
<div
className="ml1 pointer black"
onClick={() => {
localStorage.removeItem(AUTH_TOKEN);
history.push(`/`);
}}
>
logout
</div>
) : (
<Link
to="/login"
className="ml1 no-underline black"
>
login
</Link>
)}
</div>
</div>
);
};
export default Header;

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import React, { useState } from 'react';
import { useHistory } from 'react-router';
import { useMutation, gql } from '@apollo/client';
import { AUTH_TOKEN } from '../constants';
const SIGNUP_MUTATION = gql`
mutation SignupMutation(
$email: String!
$password: String!
$name: String!
) {
signup(
email: $email
password: $password
name: $name
) {
token
}
}
`;
const LOGIN_MUTATION = gql`
mutation LoginMutation(
$email: String!
$password: String!
) {
login(email: $email, password: $password) {
token
}
}
`;
const Login = () => {
const history = useHistory();
const [formState, setFormState] = useState({
login: true,
email: '',
password: '',
name: ''
});
const [login] = useMutation(LOGIN_MUTATION, {
variables: {
email: formState.email,
password: formState.password
},
onCompleted: ({ login }) => {
localStorage.setItem(AUTH_TOKEN, login.token);
history.push('/');
}
});
const [signup] = useMutation(SIGNUP_MUTATION, {
variables: {
name: formState.name,
email: formState.email,
password: formState.password
},
onCompleted: ({ signup }) => {
localStorage.setItem(AUTH_TOKEN, signup.token);
history.push('/');
}
});
return (
<div>
<h4 className="mv3">
{formState.login ? 'Login' : 'Sign Up'}
</h4>
<div className="flex flex-column">
{!formState.login && (
<input
value={formState.name}
onChange={(e) =>
setFormState({
...formState,
name: e.target.value
})
}
type="text"
placeholder="Your name"
/>
)}
<input
value={formState.email}
onChange={(e) =>
setFormState({
...formState,
email: e.target.value
})
}
type="text"
placeholder="Your email address"
/>
<input
value={formState.password}
onChange={(e) =>
setFormState({
...formState,
password: e.target.value
})
}
type="password"
placeholder="Choose a safe password"
/>
</div>
<div className="flex mt3">
<button
className="pointer mr2 button"
onClick={formState.login ? login : signup}
>
{formState.login ? 'login' : 'create account'}
</button>
<button
className="pointer button"
onClick={(e) =>
setFormState({
...formState,
login: !formState.login
})
}
>
{formState.login
? 'need to create an account?'
: 'already have an account?'}
</button>
</div>
</div>
);
};
export default Login;

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import React, { useState } from 'react';
import { useMutation } from '@apollo/client';
import { useLazyQuery } from '@apollo/client';
import gql from 'graphql-tag';
import Appointment from './Appointment';
import { Link } from 'react-router-dom';
const FEED_SEARCH_QUERY = gql`
query FeedSearchQuery($filter: String!) {
feed(filter: $filter) {
id
links {
id
url
description
createdAt
createdBy {
id
name
}
follows {
id
user {
id
}
}
}
}
}
`;
const Search = () => {
const [searchFilter, setSearchFilter] = useState('');
const [executeSearch, { data }] = useLazyQuery(
FEED_SEARCH_QUERY
);
return (
<>
<div>
Search
<input
type="text"
onChange={(e) => setSearchFilter(e.target.value)}
/>
<button
onClick={() =>
executeSearch({
variables: { filter: searchFilter }
})
}
>
OK
</button>
</div>
{data &&
data.feed.appointments.map((appointment, index) => (
<Link key={appointment.id} link={appointment} index={index} />
))}
</>
);
};
export default Search;

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export const AUTH_TOKEN = 'auth-token';
export const APPOINTMENTS_PER_PAGE = 3;

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import React from 'react';
import { BrowserRouter } from 'react-router-dom';
import { setContext } from '@apollo/client/link/context';
import { AUTH_TOKEN } from './constants';
import { split } from '@apollo/client';
import { WebSocketLink } from '@apollo/client/link/ws';
import { getMainDefinition } from '@apollo/client/utilities';
// import AppointmentList from './components/AppointmentList';
// class App extends Component {
// render() {
// return <AppointmentList />;
// }
// }
// export default App;
// import React from 'react';
import ReactDOM from 'react-dom';
import './styles/index.css';
import './styles/tachyons.min.css'
import App from './components/App';
// // import * as serviceWorker from './serviceWorker';
// // 1
import {
ApolloProvider,
ApolloClient,
createHttpLink,
InMemoryCache
} from '@apollo/client';
// 2
const httpLink = createHttpLink({
uri: 'http://localhost:4000'
});
// attach the auth_token to all requests to GraphQL server
const authLink = setContext((_, { headers }) => {
const token = localStorage.getItem(AUTH_TOKEN);
return {
headers: {
...headers,
authorization: token ? `Bearer ${token}` : ''
}
};
});
const wsLink = new WebSocketLink({
uri: `ws://localhost:4000/graphql`,
options: {
reconnect: true,
connectionParams: {
authToken: localStorage.getItem(AUTH_TOKEN)
}
}
});
const link = split(
({ query }) => {
const { kind, operation } = getMainDefinition(query);
return (
kind === 'OperationDefinition' &&
operation === 'subscription'
);
},
wsLink,
authLink.concat(httpLink)
);
// 3
const client = new ApolloClient({
link,
cache: new InMemoryCache()
});
// 4
ReactDOM.render(
<BrowserRouter>
<ApolloProvider client={client}>
<App />
</ApolloProvider>
</BrowserRouter>,
document.getElementById('root')
);
// serviceWorker.unregister();
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
// reportWebVitals();

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After

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const reportWebVitals = onPerfEntry => {
if (onPerfEntry && onPerfEntry instanceof Function) {
import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
getCLS(onPerfEntry);
getFID(onPerfEntry);
getFCP(onPerfEntry);
getLCP(onPerfEntry);
getTTFB(onPerfEntry);
});
}
};
export default reportWebVitals;

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// jest-dom adds custom jest matchers for asserting on DOM nodes.
// allows you to do things like:
// expect(element).toHaveTextContent(/react/i)
// learn more: https://github.com/testing-library/jest-dom
import '@testing-library/jest-dom';

38
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.App {
text-align: center;
}
.App-logo {
height: 40vmin;
pointer-events: none;
}
@media (prefers-reduced-motion: no-preference) {
.App-logo {
animation: App-logo-spin infinite 20s linear;
}
}
.App-header {
background-color: #282c34;
min-height: 100vh;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
font-size: calc(10px + 2vmin);
color: white;
}
.App-link {
color: #61dafb;
}
@keyframes App-logo-spin {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}

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body {
margin: 0;
padding: 0;
font-family: Verdana, Geneva, sans-serif;
}
input {
max-width: 500px;
}
.gray {
color: #828282;
}
.orange {
background-color: #ff6600;
}
.background-gray {
background-color: rgb(246, 246, 239);
}
.f11 {
font-size: 11px;
}
.w85 {
width: 85%;
}
.button {
font-family: monospace;
font-size: 10pt;
color: black;
background-color: buttonface;
text-align: center;
padding: 2px 6px 3px;
border-width: 2px;
border-style: outset;
border-color: buttonface;
cursor: pointer;
max-width: 250px;
}
/* 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;
} */

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function timeDifference(current, previous) {
const milliSecondsPerMinute = 60 * 1000;
const milliSecondsPerHour = milliSecondsPerMinute * 60;
const milliSecondsPerDay = milliSecondsPerHour * 24;
const milliSecondsPerMonth = milliSecondsPerDay * 30;
const milliSecondsPerYear = milliSecondsPerDay * 365;
const elapsed = current - previous;
if (elapsed < milliSecondsPerMinute / 3) {
return 'just now';
}
if (elapsed < milliSecondsPerMinute) {
return 'less than 1 min ago';
} else if (elapsed < milliSecondsPerHour) {
return (
Math.round(elapsed / milliSecondsPerMinute) +
' min ago'
);
} else if (elapsed < milliSecondsPerDay) {
return (
Math.round(elapsed / milliSecondsPerHour) + ' h ago'
);
} else if (elapsed < milliSecondsPerMonth) {
return (
Math.round(elapsed / milliSecondsPerDay) + ' days ago'
);
} else if (elapsed < milliSecondsPerYear) {
return (
Math.round(elapsed / milliSecondsPerMonth) + ' mo ago'
);
} else {
return (
Math.round(elapsed / milliSecondsPerYear) +
' years ago'
);
}
}
export function timeDifferenceForDate(date) {
const now = new Date().getTime();
const updated = new Date(date).getTime();
return timeDifference(now, updated);
}

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