👨‍💻

Anton Begehr abegehr

👨‍💻

building

abegehr / AppRouter.svelte

Last active March 30, 2025 23:50

Simple AppRouter with nested and guarded route definitions for Svelte SPA with browser history support in <200 lines backed by nanostores.

	<script module>
	/*
	Sample usage:

	```svelte
	<script lang="ts>
	import AppRouter, { type Router } from "./AppRouter.svelte";
	import Login from "./pages/Login.svelte";
	import Home from "./pages/Home.svelte";
	import Messages from "./pages/Messages.svelte";

abegehr / sleepjs1_promise_capabilities.js

Last active May 13, 2020 10:47

Sleepjs has all standard JS Promise capabilities

	// https://github.com/simsieg/sleepjs
	const { sleep, sleepSeconds, sleepMinutes } = require('sleepjs')

	// chain sleeps of different intervals
	async function chainingFunc() {
	await sleep(500);
	alert("Hello");
	await sleepSeconds(1);
	alert("Hello");
	await sleepSeconds(2);

abegehr / sleepjs1_async_sleep_and_alert.js

Last active May 13, 2020 10:29

sleepjs async sleep and alert

	// https://github.com/simsieg/sleepjs
	const { sleep } = require('sleepjs')

	async function myFunction() => {
	await sleep(500);
	alert("Hello");
	}

	myFunction();

abegehr / sleepjs1_setTimeout.js

Last active May 13, 2020 10:29

setTimeout Function

	// https://www.w3schools.com/jsref/met_win_settimeout.asp

	function myFunction() {
	setTimeout(function() {
	alert("Hello");
	}, 3000);
	}

	myFunction();

abegehr / jspromise2_option2.js

Last active May 7, 2020 10:32

Fetching data from Firestore simultaneously.

	// https://firebase.google.com/docs/firestore/quickstart
	var db = firebase.firestore();

	async function fetchArticle(articleId, authorId) {

	// get author and article docs simultaneously
	const authorPromise = db.doc("authors/" + authorId).get();
	const articlePromise = db.doc("articles/" + articleId).get();

	// wait until both compleeted

abegehr / jspromise2_option1.js

Created May 6, 2020 10:30

Fetching data from Firestore sequentially.

	// https://firebase.google.com/docs/firestore/quickstart
	var db = firebase.firestore();

	async function fetchArticle(articleId, authorId) {
	try {
	// get author and article docs sequentially
	const authorSnap = await db.doc("authors/" + authorId).get();
	const articleSnap = await db.doc("articles/" + articleId).get();
	}
	catch (err) {/* handle error */}

abegehr / jspromise1_async, await, try, catch.js

Last active May 6, 2020 10:29

Promise async, await, try, catch Example

	// https://firebase.google.com/docs/firestore/quickstart

	async function main() {
	try {
	const doc = await db.doc("user/" + uid).get()

	if (doc.exists) {
	console.log("User data:", doc.data());
	// use fetched data, for example in setState()
	} else {

abegehr / jspromise1_Promise.then().catch().js

Created April 30, 2020 10:32

Promise.then().catch(); Example

	// https://firebase.google.com/docs/firestore/quickstart

	const userPromise = db.doc("user/" + uid).get().then(doc => {
	if (doc.exists) {
	console.log("User data:", doc.data());
	// use fetched data, for example in setState()
	} else {
	console.warn("No user data.");
	}
	}).catch(error => {

abegehr / jspromise1_promise1.js

Last active April 28, 2020 10:25

	// https://firebase.google.com/docs/firestore/quickstart
	var db = firebase.firestore();

	const userPromise = db.doc("user/" + uid).get();
	const articlePromise = db.doc("article/1").get();

abegehr / Flutter_SensorsTest.dart

Created April 28, 2020 09:04

Testing Flutter sensors (acc, userAcc, gyro)

	import 'dart:async';
	import 'package:flutter/material.dart';
	import 'package:sensors/sensors.dart';

	class SensorsTest extends StatefulWidget {
	SensorsTest({Key key}) : super(key: key);

	@override
	_SensorsTestState createState() => _SensorsTestState();
	}