some linting and tidying

easing.mjs

@@ -6,39 +6,39 @@ Distributed under MIT License https://github.com/mattdesl/eases/blob/master/LICE
 export { identity as linear } from './internal';
 
 export function backInOut(t) {
-	var s = 1.70158 * 1.525;
+	const s = 1.70158 * 1.525;
 	if ((t *= 2) < 1) return 0.5 * (t * t * ((s + 1) * t - s));
 	return 0.5 * ((t -= 2) * t * ((s + 1) * t + s) + 2);
 }
 
 export function backIn(t) {
-	var s = 1.70158;
+	const s = 1.70158;
 	return t * t * ((s + 1) * t - s);
 }
 
 export function backOut(t) {
-	var s = 1.70158;
+	const s = 1.70158;
 	return --t * t * ((s + 1) * t + s) + 1;
 }
 
 export function bounceOut(t) {
-	var a = 4.0 / 11.0;
-	var b = 8.0 / 11.0;
-	var c = 9.0 / 10.0;
+	const a = 4.0 / 11.0;
+	const b = 8.0 / 11.0;
+	const c = 9.0 / 10.0;
 
-	var ca = 4356.0 / 361.0;
-	var cb = 35442.0 / 1805.0;
-	var cc = 16061.0 / 1805.0;
+	const ca = 4356.0 / 361.0;
+	const cb = 35442.0 / 1805.0;
+	const cc = 16061.0 / 1805.0;
 
-	var t2 = t * t;
+	const t2 = t * t;
 
 	return t < a
 		? 7.5625 * t2
 		: t < b
-		? 9.075 * t2 - 9.9 * t + 3.4
-		: t < c
-		? ca * t2 - cb * t + cc
-		: 10.8 * t * t - 20.52 * t + 10.72;
+			? 9.075 * t2 - 9.9 * t + 3.4
+			: t < c
+				? ca * t2 - cb * t + cc
+				: 10.8 * t * t - 20.52 * t + 10.72;
 }
 
 export function bounceInOut(t) {
@@ -73,7 +73,7 @@ export function cubicIn(t) {
 }
 
 export function cubicOut(t) {
-	var f = t - 1.0;
+	const f = t - 1.0;
 	return f * f * f + 1.0;
 }
 
@@ -102,8 +102,8 @@ export function expoInOut(t) {
 	return t === 0.0 || t === 1.0
 		? t
 		: t < 0.5
-		? +0.5 * Math.pow(2.0, 20.0 * t - 10.0)
-		: -0.5 * Math.pow(2.0, 10.0 - t * 20.0) + 1.0;
+			? +0.5 * Math.pow(2.0, 20.0 * t - 10.0)
+			: -0.5 * Math.pow(2.0, 10.0 - t * 20.0) + 1.0;
 }
 
 export function expoIn(t) {
@@ -161,7 +161,7 @@ export function sineInOut(t) {
 }
 
 export function sineIn(t) {
-	var v = Math.cos(t * Math.PI * 0.5);
+	const v = Math.cos(t * Math.PI * 0.5);
 	if (Math.abs(v) < 1e-14) return 1;
 	else return 1 - v;
 }

register.js

@@ -2,7 +2,7 @@ const fs = require('fs');
 const path = require('path');
 const { compile } = require('./compiler.js');
 
-let extensions = ['.svelte', '.html'];
+const extensions = ['.svelte', '.html'];
 let compileOptions = {};
 
 function capitalise(name) {

site/.eslintrc.json

@@ -35,7 +35,7 @@
 	],
 	"plugins": ["svelte3"],
 	"parserOptions": {
-		"ecmaVersion": 8,
+		"ecmaVersion": 9,
 		"sourceType": "module"
 	},
 	"settings": {

site/rollup.config.js

@@ -53,9 +53,6 @@ export default {
 				module: true
 			})
 		],
-
-		// temporary, pending Rollup 1.0
-		experimentalCodeSplitting: true
 	},
 
 	server: {
@@ -81,9 +78,6 @@ export default {
 				require('module').builtinModules || Object.keys(process.binding('natives'))
 			)
 		],
-
-		// temporary, pending Rollup 1.0
-		experimentalCodeSplitting: true
 	},
 
 	serviceworker: {

site/src/components/PreloadingIndicator.svelte

@@ -4,11 +4,7 @@
 	let p = 0;
 	let visible = false;
 
-	const sleep = ms => new Promise(f => setTimeout(f, ms));
-
 	onMount(() => {
-		let running = true;
-
 		function next() {
 			visible = true;
 			p += 0.1;
@@ -18,10 +14,6 @@
 		}
 
 		setTimeout(next, 250);
-
-		return () => {
-			running = false;
-		};
 	});
 </script>
 

site/src/components/Repl/ReplWidget.svelte

@@ -29,7 +29,7 @@
 
 		if (gist) {
 			fetch(`repl/${gist}.json`).then(r => r.json()).then(data => {
-				const { id, description, files } = data;
+				const { description, files } = data;
 
 				name = description;
 

site/src/routes/_error.svelte

@@ -7,7 +7,7 @@
 	// we don't want to use <svelte:window bind:online> here,
 	// because we only care about the online state when
 	// the page first loads
-	let online = typeof navigator !== 'undefined'
+	const online = typeof navigator !== 'undefined'
 		? navigator.onLine
 		: true;
 </script>

site/src/routes/docs/index.svelte

@@ -6,7 +6,7 @@
 </script>
 
 <script>
-	import { Docs } from '@sveltejs/site-kit'
+	import { Docs } from '@sveltejs/site-kit';
 
 	export let sections;
 </script>

site/src/routes/examples/index.svelte

@@ -37,7 +37,7 @@
 	let offset = 1;
 	let repl;
 	let isLoading = false;
-	let cache = {};
+	const cache = {};
 
 	$: title = title_by_slug[active_slug] || '';
 	$: first_slug = sections[0].examples[0].slug;
@@ -50,21 +50,21 @@
 		} else {
 			isLoading = true;
 			fetch(`examples/${active_slug}.json`)
-			.then(async response => {
-				if (response.ok) {
-					const {files} = await response.json();
-					return process_example(files);
-				}
-			})
-			.then(components => {
-				cache[active_slug] = components;
- 				repl.set({components});
-				offset = 1;
-				isLoading = false;
-			})
-			.catch(function(error) {
-				isLoading = false;
-			});
+				.then(async response => {
+					if (response.ok) {
+						const {files} = await response.json();
+						return process_example(files);
+					}
+				})
+				.then(components => {
+					cache[active_slug] = components;
+					repl.set({components});
+					offset = 1;
+					isLoading = false;
+				})
+				.catch(() => {
+					isLoading = false;
+				});
 		}
 	}
 

site/src/routes/index.svelte

@@ -13,7 +13,7 @@
 </script>
 
 <style>
-	/* darken text for accesibility */
+	/* darken text for accessibility */
 	/* TODO does this belong elsewhere? */
 	:global(.back-light) {
 		--text: hsl(36, 3%, 44%);

site/src/routes/repl/[id]/_components/AppControls/index.svelte

@@ -107,7 +107,6 @@
 		try {
 			// Send all files back to API
 			// ~> Any missing files are considered deleted!
-			const files = {};
 			const { components } = repl.toJSON();
 
 			const r = await fetch(`repl/${gist.uid}.json`, {
@@ -127,7 +126,7 @@
 				throw new Error(`Received an HTTP ${r.status} response: ${error}`);
 			}
 
-			const result = await r.json();
+			await r.json();
 
 			justSaved = true;
 			await wait(600);
@@ -155,7 +154,7 @@
 			const pkg = JSON.parse(files[idx].data);
 			const deps = {};
 			imports.forEach(mod => {
-				const match = /^(@[^\/]+\/)?[^@\/]+/.exec(mod);
+				const match = /^(@[^/]+\/)?[^@/]+/.exec(mod);
 				deps[match[0]] = 'latest';
 			});
 			pkg.dependencies = deps;

site/src/routes/repl/[id]/index.json.js

@@ -1,5 +1,4 @@
 import send from '@polka/send';
-import redirect from '@polka/redirect';
 import body from '../_utils/body.js';
 import * as httpie from 'httpie';
 import { query, find } from '../../../utils/db';