vpellegrino

// abstract class, not intended to be instantiated directly
class CalendarItem {
    static #UNSET = Symbol("unset")
    static #isUnset(v) {
        return v === this.#UNSET;
    }
    static {
        for (let [idx,msg] of [
            "ID is already set.",
            "ID is unset.",

vpellegrino

/**
 * production code
 */

const backFromWalkInTime = (steps) => {
  const stepsUp = steps.filter((step) => step === "n").length;
  const stepsDown = steps.filter((step) => step === "s").length;
  const stepsLeft = steps.filter((step) => step === "e").length;
  const stepsRight = steps.filter((step) => step === "w").length;

vpellegrino

/**
 * production code
 */

const _countOccurrences = charMap => {
  let occ = 0;
  for (let char in charMap) {
    if (charMap[char] >= 2) {
      occ++;
    }

vpellegrino

import { RefObject, useCallback, useEffect, useRef, useState } from "react";

export function useContextMenuHandler(): {
  contextMenuRef: RefObject<HTMLDivElement>;
  contextMenuXPos: string;
  contextMenuYPos: string;
  contextMenuVisibility: boolean;
  setContextMenuVisibility: (value: ((prevState: boolean) => boolean) | boolean) => void;
} {
  const wrapperRef = useRef<HTMLDivElement>(null);

vpellegrino

/**
 * production code
 */

const flatten = arr => safeArray(arr).reduce(flatReducer, []);

const safeArray = arr => Array.isArray(arr) ? arr : [];

const flatReducer = (res, elem) => {
    if (Array.isArray(elem)) {