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Add Svelte demo with Vite, add SveteKit demo

This commit is contained in:
Vjacheslav Trushkin 2021-09-28 09:40:55 +03:00
parent 35b046567d
commit 818f78eda4
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/node_modules/
/dist/
/.vscode/
.DS_Store

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# Svelte + TS + Vite
This template should help get you started developing with Svelte and TypeScript in Vite.
## Recommended IDE Setup
[VSCode](https://code.visualstudio.com/) + [Svelte](https://marketplace.visualstudio.com/items?itemName=svelte.svelte-vscode).
## Need an official Svelte framework?
Check out [SvelteKit](https://github.com/sveltejs/kit#readme), which is also powered by Vite. Deploy anywhere with its serverless-first approach and adapt to various platforms, with out of the box support for TypeScript, SCSS, and Less, and easily-added support for mdsvex, GraphQL, PostCSS, Tailwind CSS, and more.
## Technical considerations
**Why use this over SvelteKit?**
- It brings its own routing solution which might not be preferable for some users.
- It is first and foremost a framework that just happens to use Vite under the hood, not a Vite app.
`vite dev` and `vite build` wouldn't work in a SvelteKit environment, for example.
This template contains as little as possible to get started with Vite + TypeScript + Svelte, while taking into account the developer experience with regards to HMR and intellisense. It demonstrates capabilities on par with the other `create-vite` templates and is a good starting point for beginners dipping their toes into a Vite + Svelte project.
Should you later need the extended capabilities and extensibility provided by SvelteKit, the template has been structured similarly to SvelteKit so that it is easy to migrate.
**Why `global.d.ts` instead of `compilerOptions.types` inside `jsconfig.json` or `tsconfig.json`?**
Setting `compilerOptions.types` shuts out all other types not explicitly listed in the configuration. Using triple-slash references keeps the default TypeScript setting of accepting type information from the entire workspace, while also adding `svelte` and `vite/client` type information.
**Why include `.vscode/extensions.json`?**
Other templates indirectly recommend extensions via the README, but this file allows VS Code to prompt the user to install the recommended extension upon opening the project.
**Why enable `allowJs` in the TS template?**
While `allowJs: false` would indeed prevent the use of `.js` files in the project, it does not prevent the use of JavaScript syntax in `.svelte` files. In addition, it would force `checkJs: false`, bringing the worst of both worlds: not being able to guarantee the entire codebase is TypeScript, and also having worse typechecking for the existing JavaScript. In addition, there are valid use cases in which a mixed codebase may be relevant.
**Why is HMR not preserving my local component state?**
HMR state preservation comes with a number of gotchas! It has been disabled by default in both `svelte-hmr` and `@sveltejs/vite-plugin-svelte` due to its often surprising behavior. You can read the details [here](https://github.com/rixo/svelte-hmr#svelte-hmr).
If you have state that's important to retain within a component, consider creating an external store which would not be replaced by HMR.
```ts
// store.ts
// An extremely simple external store
import { writable } from 'svelte/store'
export default writable(0)
```

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<link rel="icon" href="/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Svelte + TS + Vite App</title>
</head>
<body>
<div id="app"></div>
<script type="module" src="/src/main.ts"></script>
</body>
</html>

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{
"name": "svelte-demo-vite",
"version": "0.0.0",
"type": "module",
"scripts": {
"dev": "vite",
"build": "vite build",
"serve": "vite preview",
"check": "svelte-check --tsconfig ./tsconfig.json"
},
"devDependencies": {
"@iconify-icons/mdi-light": "^1.1.0",
"@iconify/svelte": "^2.1.0-beta.4",
"@sveltejs/vite-plugin-svelte": "^1.0.0-next.11",
"@tsconfig/svelte": "^2.0.1",
"svelte": "^3.37.0",
"svelte-check": "^2.1.0",
"svelte-preprocess": "^4.7.2",
"tslib": "^2.2.0",
"typescript": "^4.3.2",
"vite": "^2.5.4"
}
}

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<script lang="ts">
import Counter from './lib/Counter.svelte'
import Icon from '@iconify/svelte';
</script>
<main>
<div class="logo">
<Icon icon="logos:svelte-icon" style="display: block; margin: 0 auto;" />
</div>
<h1><Icon icon="gg:hello" title="Hello" /> <Icon icon="logos:typescript" title="TypeScript" /> <Icon icon="emojione:heavy-heart-exclamation" title="!" /></h1>
<Counter />
<p>
Visit <a href="https://svelte.dev">svelte.dev <Icon icon="ci:external-link" inline={true} /></a> to learn how to build <Icon icon="logos:svelte" inline={true} />
apps.
</p>
<p>
Check out <a href="https://github.com/sveltejs/kit#readme">SvelteKit <Icon icon="ci:external-link" inline={true} /></a> for
the officially supported framework, also powered by Vite!
</p>
</main>
<style>
:root {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
main {
text-align: center;
padding: 1em;
margin: 0 auto;
}
.logo {
font-size: 16rem;
}
h1 {
color: #ff3e00;
text-transform: uppercase;
font-size: 4rem;
font-weight: 100;
line-height: 1;
margin: 2rem auto;
max-width: 14rem;
}
:global(h1 svg) {
vertical-align: -0.125em;
}
p {
max-width: 14rem;
margin: 1rem auto;
line-height: 1.35;
}
@media (min-width: 480px) {
h1 {
max-width: none;
}
p {
max-width: none;
}
}
</style>

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<script lang="ts">
import Icon from '@iconify/svelte';
import plusIcon from '@iconify-icons/mdi-light/plus';
let count: number = 0
const increment = () => {
count += 1
}
</script>
<button on:click={increment}>
<Icon icon={plusIcon} inline={true} /> Clicks: {count}
</button>
<style>
button {
font-family: inherit;
font-size: inherit;
padding: 1em 2em;
color: #ff3e00;
background-color: rgba(255, 62, 0, 0.1);
border-radius: 2em;
border: 2px solid rgba(255, 62, 0, 0);
outline: none;
width: 200px;
font-variant-numeric: tabular-nums;
cursor: pointer;
}
button:focus {
border: 2px solid #ff3e00;
}
button:active {
background-color: rgba(255, 62, 0, 0.2);
}
</style>

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import App from './App.svelte'
const app = new App({
target: document.getElementById('app')
})
export default app

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/// <reference types="svelte" />
/// <reference types="vite/client" />

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import sveltePreprocess from 'svelte-preprocess'
export default {
// Consult https://github.com/sveltejs/svelte-preprocess
// for more information about preprocessors
preprocess: sveltePreprocess()
}

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{
"extends": "@tsconfig/svelte/tsconfig.json",
"compilerOptions": {
"target": "esnext",
"useDefineForClassFields": true,
"module": "esnext",
"resolveJsonModule": true,
"baseUrl": ".",
/**
* Typecheck JS in `.svelte` and `.js` files by default.
* Disable checkJs if you'd like to use dynamic types in JS.
* Note that setting allowJs false does not prevent the use
* of JS in `.svelte` files.
*/
"allowJs": true,
"checkJs": true
},
"include": ["src/**/*.d.ts", "src/**/*.ts", "src/**/*.js", "src/**/*.svelte"]
}

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import { defineConfig } from 'vite'
import { svelte } from '@sveltejs/vite-plugin-svelte'
// https://vitejs.dev/config/
export default defineConfig({
plugins: [svelte()]
})

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node_modules
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# create-svelte
Everything you need to build a Svelte project, powered by [`create-svelte`](https://github.com/sveltejs/kit/tree/master/packages/create-svelte);
## Creating a project
If you're seeing this, you've probably already done this step. Congrats!
```bash
# create a new project in the current directory
npm init svelte@next
# create a new project in my-app
npm init svelte@next my-app
```
> Note: the `@next` is temporary
## Developing
Once you've created a project and installed dependencies with `npm install` (or `pnpm install` or `yarn`), start a development server:
```bash
npm run dev
# or start the server and open the app in a new browser tab
npm run dev -- --open
```
## Building
Before creating a production version of your app, install an [adapter](https://kit.svelte.dev/docs#adapters) for your target environment. Then:
```bash
npm run build
```
> You can preview the built app with `npm run preview`, regardless of whether you installed an adapter. This should _not_ be used to serve your app in production.

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{
"name": "sveltekit-demo",
"version": "0.0.1",
"scripts": {
"dev": "svelte-kit dev",
"build": "svelte-kit build",
"preview": "svelte-kit preview",
"check": "svelte-check --tsconfig ./tsconfig.json",
"check:watch": "svelte-check --tsconfig ./tsconfig.json --watch"
},
"devDependencies": {
"@iconify-icons/mdi-light": "^1.1.0",
"@iconify/svelte": "^2.1.0-beta.4",
"@sveltejs/kit": "next",
"@types/cookie": "^0.4.1",
"svelte": "^3.34.0",
"svelte-check": "^2.2.6",
"svelte-preprocess": "^4.9.4",
"tslib": "^2.3.1",
"typescript": "^4.4.3"
},
"type": "module",
"dependencies": {
"@fontsource/fira-mono": "^4.5.0",
"@lukeed/uuid": "^2.0.0",
"cookie": "^0.4.1"
}
}

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@import '@fontsource/fira-mono';
:root {
font-family: Arial, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
--font-mono: 'Fira Mono', monospace;
--pure-white: #ffffff;
--primary-color: #b9c6d2;
--secondary-color: #d0dde9;
--tertiary-color: #edf0f8;
--accent-color: #ff3e00;
--heading-color: rgba(0, 0, 0, 0.7);
--text-color: #444444;
--background-without-opacity: rgba(255, 255, 255, 0.7);
--column-width: 42rem;
--column-margin-top: 4rem;
}
body {
min-height: 100vh;
margin: 0;
background-color: var(--primary-color);
background: linear-gradient(
180deg,
var(--primary-color) 0%,
var(--secondary-color) 10.45%,
var(--tertiary-color) 41.35%
);
}
body::before {
content: '';
width: 80vw;
height: 100vh;
position: absolute;
top: 0;
left: 10vw;
z-index: -1;
background: radial-gradient(
50% 50% at 50% 50%,
var(--pure-white) 0%,
rgba(255, 255, 255, 0) 100%
);
opacity: 0.05;
}
#svelte {
min-height: 100vh;
display: flex;
flex-direction: column;
}
h1,
h2,
p {
font-weight: 400;
color: var(--heading-color);
}
p {
line-height: 1.5;
}
a {
color: var(--accent-color);
text-decoration: none;
}
a:hover {
text-decoration: underline;
}
h1 {
font-size: 2rem;
text-align: center;
}
h2 {
font-size: 1rem;
}
pre {
font-size: 16px;
font-family: var(--font-mono);
background-color: rgba(255, 255, 255, 0.45);
border-radius: 3px;
box-shadow: 2px 2px 6px rgb(255 255 255 / 25%);
padding: 0.5em;
overflow-x: auto;
color: var(--text-color);
}
input,
button {
font-size: inherit;
font-family: inherit;
}
button:focus:not(:focus-visible) {
outline: none;
}
@media (min-width: 720px) {
h1 {
font-size: 2.4rem;
}
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="/favicon.png" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
%svelte.head%
</head>
<body>
<div id="svelte">%svelte.body%</div>
</body>
</html>

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/// <reference types="@sveltejs/kit" />

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import cookie from 'cookie';
import { v4 as uuid } from '@lukeed/uuid';
import type { Handle } from '@sveltejs/kit';
export const handle: Handle = async ({ request, resolve }) => {
const cookies = cookie.parse(request.headers.cookie || '');
request.locals.userid = cookies.userid || uuid();
// TODO https://github.com/sveltejs/kit/issues/1046
if (request.query.has('_method')) {
request.method = request.query.get('_method').toUpperCase();
}
const response = await resolve(request);
if (!cookies.userid) {
// if this is the first time the user has visited this app,
// set a cookie so that we recognise them when they return
response.headers['set-cookie'] = cookie.serialize('userid', request.locals.userid, {
path: '/',
httpOnly: true
});
}
return response;
};

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<script lang="ts">
import { spring } from 'svelte/motion';
let count = 0;
const displayed_count = spring();
$: displayed_count.set(count);
$: offset = modulo($displayed_count, 1);
function modulo(n: number, m: number) {
// handle negative numbers
return ((n % m) + m) % m;
}
</script>
<div class="counter">
<button on:click={() => (count -= 1)} aria-label="Decrease the counter by one">
<svg aria-hidden="true" viewBox="0 0 1 1">
<path d="M0,0.5 L1,0.5" />
</svg>
</button>
<div class="counter-viewport">
<div class="counter-digits" style="transform: translate(0, {100 * offset}%)">
<strong style="top: -100%" aria-hidden="true">{Math.floor($displayed_count + 1)}</strong>
<strong>{Math.floor($displayed_count)}</strong>
</div>
</div>
<button on:click={() => (count += 1)} aria-label="Increase the counter by one">
<svg aria-hidden="true" viewBox="0 0 1 1">
<path d="M0,0.5 L1,0.5 M0.5,0 L0.5,1" />
</svg>
</button>
</div>
<style>
.counter {
display: flex;
border-top: 1px solid rgba(0, 0, 0, 0.1);
border-bottom: 1px solid rgba(0, 0, 0, 0.1);
margin: 1rem 0;
}
.counter button {
width: 2em;
padding: 0;
display: flex;
align-items: center;
justify-content: center;
border: 0;
background-color: transparent;
color: var(--text-color);
font-size: 2rem;
}
.counter button:hover {
background-color: var(--secondary-color);
}
svg {
width: 25%;
height: 25%;
}
path {
vector-effect: non-scaling-stroke;
stroke-width: 2px;
stroke: var(--text-color);
}
.counter-viewport {
width: 8em;
height: 4em;
overflow: hidden;
text-align: center;
position: relative;
}
.counter-viewport strong {
position: absolute;
display: flex;
width: 100%;
height: 100%;
font-weight: 400;
color: var(--accent-color);
font-size: 4rem;
align-items: center;
justify-content: center;
}
.counter-digits {
position: absolute;
width: 100%;
height: 100%;
}
</style>

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// this action (https://svelte.dev/tutorial/actions) allows us to
// progressively enhance a <form> that already works without JS
export function enhance(
form: HTMLFormElement,
{
pending,
error,
result
}: {
pending?: (data: FormData, form: HTMLFormElement) => void;
error?: (res: Response, error: Error, form: HTMLFormElement) => void;
result: (res: Response, form: HTMLFormElement) => void;
}
) {
let current_token: {};
async function handle_submit(e: Event) {
const token = (current_token = {});
e.preventDefault();
const body = new FormData(form);
if (pending) pending(body, form);
try {
const res = await fetch(form.action, {
method: form.method,
headers: {
accept: 'application/json'
},
body
});
if (token !== current_token) return;
if (res.ok) {
result(res, form);
} else if (error) {
error(res, null, form);
} else {
console.error(await res.text());
}
} catch (e) {
if (error) {
error(null, e, form);
} else {
throw e;
}
}
}
form.addEventListener('submit', handle_submit);
return {
destroy() {
form.removeEventListener('submit', handle_submit);
}
};
}

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<script lang="ts">
import Icon, { addIcon } from '@iconify/svelte';
import { page } from '$app/stores';
addIcon('corner-left', {
body: '<path d="M0,0 L1,2 C1.5,3 1.5,3 2,3 L2,0 Z" fill="currentColor" />',
width: 2,
height: 3
});
addIcon('corner-right', {
body: '<path d="M0,0 L0,3 C0.5,3 0.5,3 1,2 L2,0 Z" fill="currentColor" />',
width: 2,
height: 3
});
</script>
<header>
<div class="corner">
<a href="https://kit.svelte.dev">
<Icon icon="logos:svelte-icon" title="SvekteKit" />
</a>
</div>
<nav>
<Icon icon="corner-left" height="auto" />
<ul>
<li class:active={$page.path === '/'}><a sveltekit:prefetch href="/">Home</a></li>
<li class:active={$page.path === '/about'}><a sveltekit:prefetch href="/about">About</a></li>
<li class:active={$page.path === '/todos'}><a sveltekit:prefetch href="/todos">Todos</a></li>
</ul>
<Icon icon="corner-right" height="auto" />
</nav>
<div class="corner">
<a href="https://github.com/iconify/iconify/tree/master/packages/svelte">
<Icon icon="line-md:iconify2" title="Iconify" />
</a>
</div>
</header>
<style>
header {
display: flex;
justify-content: space-between;
}
.corner {
width: 3em;
height: 3em;
}
.corner a {
display: flex;
align-items: center;
justify-content: center;
width: 100%;
height: 100%;
}
.corner :global(svg) {
font-size: 2em;
}
nav {
display: flex;
justify-content: center;
--background: rgba(255, 255, 255, 0.7);
}
nav :global(svg) {
width: 2em;
height: 3em;
display: block;
color: var(--background);
}
ul {
position: relative;
padding: 0;
margin: 0;
height: 3em;
display: flex;
justify-content: center;
align-items: center;
list-style: none;
background: var(--background);
background-size: contain;
}
li {
position: relative;
height: 100%;
}
li.active::before {
--size: 6px;
content: '';
width: 0;
height: 0;
position: absolute;
top: 0;
left: calc(50% - var(--size));
border: var(--size) solid transparent;
border-top: var(--size) solid var(--accent-color);
}
nav a {
display: flex;
height: 100%;
align-items: center;
padding: 0 1em;
color: var(--heading-color);
font-weight: 700;
font-size: 0.8rem;
text-transform: uppercase;
letter-spacing: 0.1em;
text-decoration: none;
transition: color 0.2s linear;
}
a:hover {
color: var(--accent-color);
}
</style>

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<svg xmlns="http://www.w3.org/2000/svg" width="107" height="128" viewBox="0 0 107 128"><title>svelte-logo</title><path d="M94.1566,22.8189c-10.4-14.8851-30.94-19.2971-45.7914-9.8348L22.2825,29.6078A29.9234,29.9234,0,0,0,8.7639,49.6506a31.5136,31.5136,0,0,0,3.1076,20.2318A30.0061,30.0061,0,0,0,7.3953,81.0653a31.8886,31.8886,0,0,0,5.4473,24.1157c10.4022,14.8865,30.9423,19.2966,45.7914,9.8348L84.7167,98.3921A29.9177,29.9177,0,0,0,98.2353,78.3493,31.5263,31.5263,0,0,0,95.13,58.117a30,30,0,0,0,4.4743-11.1824,31.88,31.88,0,0,0-5.4473-24.1157" style="fill:#ff3e00"/><path d="M45.8171,106.5815A20.7182,20.7182,0,0,1,23.58,98.3389a19.1739,19.1739,0,0,1-3.2766-14.5025,18.1886,18.1886,0,0,1,.6233-2.4357l.4912-1.4978,1.3363.9815a33.6443,33.6443,0,0,0,10.203,5.0978l.9694.2941-.0893.9675a5.8474,5.8474,0,0,0,1.052,3.8781,6.2389,6.2389,0,0,0,6.6952,2.485,5.7449,5.7449,0,0,0,1.6021-.7041L69.27,76.281a5.4306,5.4306,0,0,0,2.4506-3.631,5.7948,5.7948,0,0,0-.9875-4.3712,6.2436,6.2436,0,0,0-6.6978-2.4864,5.7427,5.7427,0,0,0-1.6.7036l-9.9532,6.3449a19.0329,19.0329,0,0,1-5.2965,2.3259,20.7181,20.7181,0,0,1-22.2368-8.2427,19.1725,19.1725,0,0,1-3.2766-14.5024,17.9885,17.9885,0,0,1,8.13-12.0513L55.8833,23.7472a19.0038,19.0038,0,0,1,5.3-2.3287A20.7182,20.7182,0,0,1,83.42,29.6611a19.1739,19.1739,0,0,1,3.2766,14.5025,18.4,18.4,0,0,1-.6233,2.4357l-.4912,1.4978-1.3356-.98a33.6175,33.6175,0,0,0-10.2037-5.1l-.9694-.2942.0893-.9675a5.8588,5.8588,0,0,0-1.052-3.878,6.2389,6.2389,0,0,0-6.6952-2.485,5.7449,5.7449,0,0,0-1.6021.7041L37.73,51.719a5.4218,5.4218,0,0,0-2.4487,3.63,5.7862,5.7862,0,0,0,.9856,4.3717,6.2437,6.2437,0,0,0,6.6978,2.4864,5.7652,5.7652,0,0,0,1.602-.7041l9.9519-6.3425a18.978,18.978,0,0,1,5.2959-2.3278,20.7181,20.7181,0,0,1,22.2368,8.2427,19.1725,19.1725,0,0,1,3.2766,14.5024,17.9977,17.9977,0,0,1-8.13,12.0532L51.1167,104.2528a19.0038,19.0038,0,0,1-5.3,2.3287" style="fill:#fff"/></svg>

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/**
* Can be made globally available by placing this
* inside `global.d.ts` and removing `export` keyword
*/
export interface Locals {
userid: string;
}

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<script lang="ts">
import Header from '$lib/header/Header.svelte';
import '../app.css';
</script>
<Header />
<main>
<slot />
</main>
<footer>
<p>visit <a href="https://kit.svelte.dev">kit.svelte.dev</a> to learn SvelteKit</p>
</footer>
<style>
main {
flex: 1;
display: flex;
flex-direction: column;
padding: 1rem;
width: 100%;
max-width: 1024px;
margin: 0 auto;
box-sizing: border-box;
}
footer {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
padding: 40px;
}
footer a {
font-weight: bold;
}
@media (min-width: 480px) {
footer {
padding: 40px 0;
}
}
</style>

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<script context="module">
import { browser, dev } from '$app/env';
// we don't need any JS on this page, though we'll load
// it in dev so that we get hot module replacement...
export const hydrate = dev;
// ...but if the client-side router is already loaded
// (i.e. we came here from elsewhere in the app), use it
export const router = browser;
// since there's no dynamic data here, we can prerender
// it so that it gets served as a static asset in prod
export const prerender = true;
</script>
<svelte:head>
<title>About</title>
</svelte:head>
<div class="content">
<h1>About this app</h1>
<p>
This is a <a href="https://kit.svelte.dev">SvelteKit</a> app. You can make your own by typing the
following into your command line and following the prompts:
</p>
<!-- TODO lose the @next! -->
<pre>npm init svelte@next</pre>
<p>
The page you're looking at is purely static HTML, with no client-side interactivity needed.
Because of that, we don't need to load any JavaScript. Try viewing the page's source, or opening
the devtools network panel and reloading.
</p>
<p>
The <a href="/todos">TODOs</a> page illustrates SvelteKit's data loading and form handling. Try using
it with JavaScript disabled!
</p>
</div>
<style>
.content {
width: 100%;
max-width: var(--column-width);
margin: var(--column-margin-top) auto 0 auto;
}
</style>

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<script context="module" lang="ts">
export const prerender = true;
</script>
<script lang="ts">
import Counter from '$lib/Counter.svelte';
</script>
<svelte:head>
<title>Home</title>
</svelte:head>
<section>
<h1>
<div class="welcome">
<picture>
<source srcset="svelte-welcome.webp" type="image/webp" />
<img src="svelte-welcome.png" alt="Welcome" />
</picture>
</div>
to your new<br />SvelteKit app
</h1>
<h2>
try editing <strong>src/routes/index.svelte</strong>
</h2>
<Counter />
</section>
<style>
section {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
flex: 1;
}
h1 {
width: 100%;
}
.welcome {
position: relative;
width: 100%;
height: 0;
padding: 0 0 calc(100% * 495 / 2048) 0;
}
.welcome img {
position: absolute;
width: 100%;
height: 100%;
top: 0;
display: block;
}
</style>

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import { api } from './_api';
import type { RequestHandler } from '@sveltejs/kit';
import type { Locals } from '$lib/types';
// PATCH /todos/:uid.json
export const patch: RequestHandler<Locals, FormData> = async (request) => {
return api(request, `todos/${request.locals.userid}/${request.params.uid}`, {
text: request.body.get('text'),
done: request.body.has('done') ? !!request.body.get('done') : undefined
});
};
// DELETE /todos/:uid.json
export const del: RequestHandler<Locals> = async (request) => {
return api(request, `todos/${request.locals.userid}/${request.params.uid}`);
};

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import type { Request } from '@sveltejs/kit';
import type { Locals } from '$lib/types';
/*
This module is used by the /todos.json and /todos/[uid].json
endpoints to make calls to api.svelte.dev, which stores todos
for each user. The leading underscore indicates that this is
a private module, _not_ an endpoint visiting /todos/_api
will net you a 404 response.
(The data on the todo app will expire periodically; no
guarantees are made. Don't use it to organise your life.)
*/
const base = 'https://api.svelte.dev';
export async function api(request: Request<Locals>, resource: string, data?: {}) {
// user must have a cookie set
if (!request.locals.userid) {
return { status: 401 };
}
const res = await fetch(`${base}/${resource}`, {
method: request.method,
headers: {
'content-type': 'application/json'
},
body: data && JSON.stringify(data)
});
// if the request came from a <form> submission, the browser's default
// behaviour is to show the URL corresponding to the form's "action"
// attribute. in those cases, we want to redirect them back to the
// /todos page, rather than showing the response
if (res.ok && request.method !== 'GET' && request.headers.accept !== 'application/json') {
return {
status: 303,
headers: {
location: '/todos'
}
};
}
return {
status: res.status,
body: await res.json()
};
}

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import { api } from './_api';
import type { RequestHandler } from '@sveltejs/kit';
import type { Locals } from '$lib/types';
// GET /todos.json
export const get: RequestHandler<Locals> = async (request) => {
// request.locals.userid comes from src/hooks.js
const response = await api(request, `todos/${request.locals.userid}`);
if (response.status === 404) {
// user hasn't created a todo list.
// start with an empty array
return { body: [] };
}
return response;
};
// POST /todos.json
export const post: RequestHandler<Locals, FormData> = async (request) => {
const response = await api(request, `todos/${request.locals.userid}`, {
// because index.svelte posts a FormData object,
// request.body is _also_ a (readonly) FormData
// object, which allows us to get form data
// with the `body.get(key)` method
text: request.body.get('text')
});
return response;
};

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<script context="module" lang="ts">
import { enhance } from '$lib/form';
import type { Load } from '@sveltejs/kit';
// see https://kit.svelte.dev/docs#loading
export const load: Load = async ({ fetch }) => {
const res = await fetch('/todos.json');
if (res.ok) {
const todos = await res.json();
return {
props: { todos }
};
}
const { message } = await res.json();
return {
error: new Error(message)
};
};
</script>
<script lang="ts">
import { scale } from 'svelte/transition';
import { flip } from 'svelte/animate';
type Todo = {
uid: string;
created_at: Date;
text: string;
done: boolean;
pending_delete: boolean;
};
export let todos: Todo[];
async function patch(res: Response) {
const todo = await res.json();
todos = todos.map((t) => {
if (t.uid === todo.uid) return todo;
return t;
});
}
</script>
<svelte:head>
<title>Todos</title>
</svelte:head>
<div class="todos">
<h1>Todos</h1>
<form
class="new"
action="/todos.json"
method="post"
use:enhance={{
result: async (res, form) => {
const created = await res.json();
todos = [...todos, created];
form.reset();
}
}}
>
<input name="text" aria-label="Add todo" placeholder="+ tap to add a todo" />
</form>
{#each todos as todo (todo.uid)}
<div
class="todo"
class:done={todo.done}
transition:scale|local={{ start: 0.7 }}
animate:flip={{ duration: 200 }}
>
<form
action="/todos/{todo.uid}.json?_method=patch"
method="post"
use:enhance={{
pending: (data) => {
todo.done = !!data.get('done');
},
result: patch
}}
>
<input type="hidden" name="done" value={todo.done ? '' : 'true'} />
<button class="toggle" aria-label="Mark todo as {todo.done ? 'not done' : 'done'}" />
</form>
<form
class="text"
action="/todos/{todo.uid}.json?_method=patch"
method="post"
use:enhance={{
result: patch
}}
>
<input aria-label="Edit todo" type="text" name="text" value={todo.text} />
<button class="save" aria-label="Save todo" />
</form>
<form
action="/todos/{todo.uid}.json?_method=delete"
method="post"
use:enhance={{
pending: () => (todo.pending_delete = true),
result: () => {
todos = todos.filter((t) => t.uid !== todo.uid);
}
}}
>
<button class="delete" aria-label="Delete todo" disabled={todo.pending_delete} />
</form>
</div>
{/each}
</div>
<style>
.todos {
width: 100%;
max-width: var(--column-width);
margin: var(--column-margin-top) auto 0 auto;
line-height: 1;
}
.new {
margin: 0 0 0.5rem 0;
}
input {
border: 1px solid transparent;
}
input:focus-visible {
box-shadow: inset 1px 1px 6px rgba(0, 0, 0, 0.1);
border: 1px solid #ff3e00 !important;
outline: none;
}
.new input {
font-size: 28px;
width: 100%;
padding: 0.5em 1em 0.3em 1em;
box-sizing: border-box;
background: rgba(255, 255, 255, 0.05);
border-radius: 8px;
text-align: center;
}
.todo {
display: grid;
grid-template-columns: 2rem 1fr 2rem;
grid-gap: 0.5rem;
align-items: center;
margin: 0 0 0.5rem 0;
padding: 0.5rem;
background-color: white;
border-radius: 8px;
filter: drop-shadow(2px 4px 6px rgba(0, 0, 0, 0.1));
transform: translate(-1px, -1px);
transition: filter 0.2s, transform 0.2s;
}
.done {
transform: none;
opacity: 0.4;
filter: drop-shadow(0px 0px 1px rgba(0, 0, 0, 0.1));
}
form.text {
position: relative;
display: flex;
align-items: center;
flex: 1;
}
.todo input {
flex: 1;
padding: 0.5em 2em 0.5em 0.8em;
border-radius: 3px;
}
.todo button {
width: 2em;
height: 2em;
border: none;
background-color: transparent;
background-position: 50% 50%;
background-repeat: no-repeat;
}
button.toggle {
border: 1px solid rgba(0, 0, 0, 0.2);
border-radius: 50%;
box-sizing: border-box;
background-size: 1em auto;
}
.done .toggle {
background-image: url("data:image/svg+xml,%3Csvg width='22' height='16' viewBox='0 0 22 16' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20.5 1.5L7.4375 14.5L1.5 8.5909' stroke='%23676778' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.delete {
background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M4.5 5V22H19.5V5H4.5Z' fill='%23676778' stroke='%23676778' stroke-width='1.5' stroke-linejoin='round'/%3E%3Cpath d='M10 10V16.5' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M14 10V16.5' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M2 5H22' stroke='%23676778' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3Cpath d='M8 5L9.6445 2H14.3885L16 5H8Z' fill='%23676778' stroke='%23676778' stroke-width='1.5' stroke-linejoin='round'/%3E%3C/svg%3E%0A");
opacity: 0.2;
}
.delete:hover,
.delete:focus {
transition: opacity 0.2s;
opacity: 1;
}
.save {
position: absolute;
right: 0;
opacity: 0;
background-image: url("data:image/svg+xml,%3Csvg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20.5 2H3.5C2.67158 2 2 2.67157 2 3.5V20.5C2 21.3284 2.67158 22 3.5 22H20.5C21.3284 22 22 21.3284 22 20.5V3.5C22 2.67157 21.3284 2 20.5 2Z' fill='%23676778' stroke='%23676778' stroke-width='1.5' stroke-linejoin='round'/%3E%3Cpath d='M17 2V11H7.5V2H17Z' fill='white' stroke='white' stroke-width='1.5' stroke-linejoin='round'/%3E%3Cpath d='M13.5 5.5V7.5' stroke='%23676778' stroke-width='1.5' stroke-linecap='round'/%3E%3Cpath d='M5.99844 2H18.4992' stroke='%23676778' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E%0A");
}
.todo input:focus + .save,
.save:focus {
transition: opacity 0.2s;
opacity: 1;
}
</style>

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

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import preprocess from 'svelte-preprocess';
/** @type {import('@sveltejs/kit').Config} */
const config = {
// Consult https://github.com/sveltejs/svelte-preprocess
// for more information about preprocessors
preprocess: preprocess(),
kit: {
// hydrate the <div id="svelte"> element in src/app.html
target: '#svelte'
}
};
export default config;

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{
"compilerOptions": {
"moduleResolution": "node",
"module": "es2020",
"lib": ["es2020", "DOM"],
"target": "es2019",
/**
svelte-preprocess cannot figure out whether you have a value or a type, so tell TypeScript
to enforce using \`import type\` instead of \`import\` for Types.
*/
"importsNotUsedAsValues": "error",
"isolatedModules": true,
"resolveJsonModule": true,
/**
To have warnings/errors of the Svelte compiler at the correct position,
enable source maps by default.
*/
"sourceMap": true,
"esModuleInterop": true,
"skipLibCheck": true,
"forceConsistentCasingInFileNames": true,
"baseUrl": ".",
"allowJs": true,
"checkJs": true,
"paths": {
"$lib": ["src/lib"],
"$lib/*": ["src/lib/*"]
}
},
"include": ["src/**/*.d.ts", "src/**/*.js", "src/**/*.ts", "src/**/*.svelte"]
}