IgnusG

const isArray = (o) => o.map !== undefined;

const generateValidation = (string, ...validationLiterals) => {
  const [ head, ...strings ] = isArray(string) ? string : [string];

  return (...validationArg) => {
    const validationResults = validationLiterals.map((validation) => validation(...validationArg));
    if (validationResults.every((e) => e === null)) {
      return { valid: true };
    }

IgnusG

diff --git a/node_modules/eslint-plugin-svelte3/index.js b/node_modules/eslint-plugin-svelte3/index.js
index 86ec523..cba16d2 100644
--- a/node_modules/eslint-plugin-svelte3/index.js
+++ b/node_modules/eslint-plugin-svelte3/index.js
@@ -62,6 +62,15 @@ const get_line_offsets = str => {
 	return offsets;
 };
 
+// find the index of the last element of an array matching a condition
+const find_last_index = (array, cond) => {

IgnusG

What is prototypical inheritance and how useful is it?

How can JavaScript be used to improve accessibility on the web?

What is event bubbling and how is it different to event capturing?

Bubbling is one of the 2 phases in event propagation. The other phase is called the capturing phase. The 2 phases are always run in the order: capturing then bubbling.

Events bubble from the target (source element) and move up the DOM tree to the root.

IgnusG

#!/bin/bash

is_git_repo() {
    git rev-parse --show-toplevel > /dev/null 2>&1
    result=$?
    if test $result != 0; then
        >&2 echo 'Not a git repo!'
        exit $result
  fi
}

IgnusG

/* eslint-disable @typescript-eslint/no-explicit-any */

type OverloadedProps<Signature> = Pick<Signature, keyof Signature>;

type OverloadedSignatureToUnionStep<
  Signature,
  PartialOverloadedSignature = unknown,
> = CurrentPiano extends FivePianos
  ? PartialOverloadedSignature
  : Signature extends (

IgnusG

import { differenceInDays } from 'date-fns';

/** Checks whether two days are bordering/adjacent to each other
 *
 * @example
 *
 * ```typescript
 * areDaysBordering(new Date('2025-05-01'), new Date('2025-05-02')) === true
 * areDaysBordering(new Date('2025-05-01'), new Date('2025-05-10')) === false
 * ```