DavidWells’s gists

DavidWells / trim-comments.js

Created February 24, 2022 04:23

Trim comments from a string

	// via https://github.com/suchipi/without-comments/blob/main/index.js
	function trimComments(content, commentToken = "#") {
	const startRegex = new RegExp(`^${commentToken}`);
	const endRegex = new RegExp(`${commentToken}.*$`, "g");

	return content
	.split("\n")
	.map((line) => {
	// remove comment lines
	if (startRegex.test(line.trim())) return "";

DavidWells / simple-object-search.js

Created February 22, 2022 04:37

Super simple array of object search without referencing keys

	// https://github.com/RajikaKeminda/multi-search/blob/main/index.js
	// https://multi-search.vercel.app/
	// https://codesandbox.io/s/upbeat-goldberg-mzvzqz?from-embed=&file=/src/App.js

	function singleKeyFilter(list, query, key) {
	let querySanitizer = String(query).trim().toLowerCase();
	return list.filter(
	(i) => String(i[key]).toLowerCase().indexOf(querySanitizer) > -1
	);
	}

DavidWells / super-simple-gantt-chart.html

Created February 19, 2022 18:04

Super simple Gantt chart setup using google charts

	<html>
	<head>
	<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
	<script type="text/javascript">
	const DEFAULT_ACTIVITY_TIME_IN_DAYS = 14

	google.charts.load('current', { 'packages': ['gantt'] })
	google.charts.setOnLoadCallback(drawChart);

	function daysToMilliseconds(days) {

DavidWells / debug-netlify-cache-directory.js

Created February 19, 2022 17:51

Debug what is in your netlify cache dir

	const path = require('path')
	const getCacheInfo = require('whats-in-the-cache')

	const NETLIFY_CACHE_DIR = '/opt/build/cache'
	const MY_BUILD_DIR = path.resolve('build')
	const CACHE_MANIFEST_PATH = path.join(MY_BUILD_DIR, 'cache-output.json')

	getCacheInfo({
	cacheDirectory: NETLIFY_CACHE_DIR,
	outputPath: CACHE_MANIFEST_PATH,

DavidWells / parse-time-string.js

Created February 18, 2022 22:54

Parse time out of random string. Handy

	// https://github.com/substack/parse-messy-time/blob/master/index.js

	var months = [
	'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August',
	'September', 'October', 'November', 'December'
	];
	var days = [
	'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'
	];

DavidWells / import-flavors.js

Created February 14, 2022 22:43

“infamous triplet” set up to support TS, faux esm, esm and commonjs

	// https://github.com/fastify/fastify/blob/224dc104260ad26f9baa0e46962f917963d41fe5/fastify.js#L711
	// https://twitter.com/matteocollina/status/1493198259212406784
	/**
	* These export configurations enable JS and TS developers
	* to consumer fastify in whatever way best suits their needs.
	* Some examples of supported import syntax includes:
	* - `const fastify = require('fastify')`
	* - `const { fastify } = require('fastify')`
	* - `import * as Fastify from 'fastify'`
	* - `import { fastify, TSC_definition } from 'fastify'`

DavidWells / create-full-rest-proxy.js

Last active February 27, 2022 01:35

REST JS proxy implementation based on https://gist.github.com/v1vendi/75d5e5dad7a2d1ef3fcb48234e4528cb

	const fetch = async (...args) => {
	console.log(...args)
	return {
	statusCode: 200,
	data: {},
	}
	}

	function httpRequest(url, method, data, opts, cb) {
	const init = { method }

DavidWells / fetch-via-js-proxy.js

Last active February 8, 2022 17:02

Fetch pages via JS proxy with await www

	// Via https://twitter.com/RReverser/status/1490873967577640961
	function wwwProxy() {
	return new Proxy(new URL('https://www/'), {
	get: function get(target, prop) {
	let orig = Reflect.get(target, prop);
	if (typeof orig === 'function') return orig.bind(target);
	if (typeof prop !== 'string') return orig;
	if (prop === 'then') return Promise.prototype.then.bind(fetch(target));
	target = new URL(target);
	target.hostname += `.${prop}`;

DavidWells / alter-function-args-with-proxy.js

Created February 8, 2022 01:04

Alter function args via JS proxy

	// via https://blog.sessionstack.com/how-javascript-works-proxy-and-reflect-11748452c695
	const p = new Proxy(function() {}, {
	apply: function(target, thisArg, argumentsList) {
	console.log('called: ' + argumentsList.join(', '));
	return argumentsList[0] + argumentsList[1] + argumentsList[2];
	}
	});

	console.log(p(1, 2, 3)); // This will print called: 1, 2, 3 and 6

DavidWells / set-private-field-via-proxy.js

Created February 8, 2022 01:00

Set private object fields via JS proxy

	// https://betterprogramming.pub/everything-you-should-know-about-javascript-proxy-67576f2e069e
	function setPrivateField(obj, prefix = "_"){
	return new Proxy(obj, {
	has: (obj, prop) => {
	if(typeof prop === "string" && prop.startsWith(prefix)){
	return false
	}
	return prop in obj
	},
	ownKeys: obj => {

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