paulwib’s gists

paulwib / example.sh

Last active October 25, 2024 07:47

curl | sh with args

	#!/bin/sh

	# For example, to pass "foo" as argument 1:
	# curl -sSL https://example.com/example.sh \| sh -s -- foo
	# For more details see: https://www.baeldung.com/linux/curl-fetched-script-arguments

	echo "ARGUMENT 1: ${1}"

paulwib / ymd.ts

Created August 1, 2024 16:41

Generate lists of years, months and days

	import * as R from 'ramda';

	// Used for HTML form where you can select individual year, month and day from dropdowns

	// Last 20 years in reverse order
	const years: number[] = R.unfold(
	(n: number) => n < new Date().getFullYear() - 20 \|\| [n, n - 1],
	new Date().getFullYear(),
	);
	// All the calendar months

paulwib / expand.sh

Created September 17, 2021 18:44

Dangerously expanding a file with environment vars

	#!/usr/bin/env sh
	export BAR="living on the edge"
	export FRED="be careful!"
	eval "echo \"$(cat file_with_vars.txt)\""

paulwib / minimal-html4.html

Created January 26, 2019 18:39

Minimal valid HTML docs

	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
	"http://www.w3.org/TR/html4/strict.dtd">
	<html>
	<title>The most minimal valid HTML4 document</title>
	<p>At least some other content than a title is required, no head or body</p>
	</html>

paulwib / functional-cucumber-steps.js

Last active June 25, 2018 11:15

Functional Cucumber.js

	const { defineStep } = require('cucumber');
	const arity = require('util-arity');

	/**
	* Wrap a step function so it is passed the `world` scope as the first argument.
	* Allows writing step definitions in a "purer" more functional style without
	* worry about what `this` is, which is especially annoying when calling functions
	* from other functions.
	*
	* Internal helpers expect world as the first argument, which is fine when they're

paulwib / async-chain.js

Last active January 26, 2019 18:29

Chaining async functions

	/**
	* Chain an arbitrary number of async functions so they are executed in
	* sequence until the final one resolves, or one of them rejects.
	*
	* @param {...Function} fns - multiple async functions
	* @return {Function}
	*/
	function chain(...fns) {
	if (fns.length === 0) throw new Error('chain: at least one argument required!');
	const fn = fns.shift();

paulwib / fat-arrows.js

Created December 10, 2016 15:02

Fat arrow fail

	var foo = () => console.log(this); // foo() - `this` is undefined
	var bar = function() { console.log(this) }; // bar() -`this` is window (in browser)
	var fred = function() { console.log(arguments) }; // fred(1) - [1]
	var dave = () => console.log(arguments); // dave(1) - Reference error, arguments is undefined!

paulwib / promise-success-fail-all.js

Created November 28, 2016 17:08

Handling mixed success/fail promises

	/**
	* You have 2 promises either of which may fail or succed.
	*
	* You want to run a handler after all have failed or succeeded and have access to the result of each promise.
	*
	* How?
	*/
	const Promise = require('bluebird');

	var fail = n => new Promise((resolve, reject) => setTimeout(function() { reject('fail!') }, n*100));

paulwib / serializeObject.js

Created May 17, 2013 10:43

Serialize a form to a JavaScript object with jQuery

	function serializeObject($form) {

	var counters = {},
	serialized = {};

	$form.serializeArray().forEach(function(input) {
	// Split name into tokens, fixing numeric indexes where neccessary
	var tokens = input.name.split('[').map(function(value) {
	value = value.replace(']', '');
	if(value === '') {

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