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// use JSX with el instead of React.createElement
/** @jsx createElement */

const Children = {
  only(children) {
    if (children.length > 1 || children.length === 0) {
      throw new Error('The children must have only one element');
    }
    return children[0];
  }

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(_ => {
  const target = document.documentElement;

  // config object
  const config = {
    attributes: true,
    attributeOldValue: true,
    characterData: true,
    characterDataOldValue: true,
    childList: true,

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function Catch(E, callback) {
    return function (target, key: string, descriptor: PropertyDescriptor) {

    if(descriptor === undefined) {
      descriptor = Object.getOwnPropertyDescriptor(target, key);
    }
    var originalMethod = descriptor.value;
 
    descriptor.value = function () {
        try {

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// Based on https://hiddedevries.nl/en/blog/2017-01-29-using-javascript-to-trap-focus-in-an-element

import React, { useRef, useEffect } from 'react';

const KEYCODE_TAB = 9;

function useFocusTrap() {
  const elRef = useRef(null);

  function handleFocus(e) {

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import {
  html,
  LitElement
} from "https://unpkg.com/@polymer/[email protected]/lit-element.js?module";

const KEYCODE_TAB = 9;

class FocusTrap extends LitElement {
  constructor() {
    super();

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// used to retrieve template content
const templates = new Map;

// used to retrieve node updates
const updates = new WeakMap;

// hyperHTML, the nitty gritty
function hyperHTML(chunks, ...interpolations) {

  // if the static chunks are unknown

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import React, { Suspense, useState } from "react";
import { unstable_createResource as createResource } from "react-cache";
import {
  Combobox,
  ComboboxInput,
  ComboboxList,
  ComboboxOption
} from "./Combobox2.js";

function App({ tabIndex, navigate }) {

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import React, { useMemo } from "react";
import useSubscription from "./useSubscription";

// In this example, "source" is an event dispatcher (e.g. an HTMLInputElement)
// but it could be anything that emits an event and has a readable current value.
function Example({ source }) {
  // In order to avoid removing and re-adding subscriptions each time this hook is called,
  // the parameters passed to this hook should be memoized.
  const subscription = useMemo(
    () => ({

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import SwiftUI
import Combine

class MyDatabase: BindableObject {
    let didChange = PassthroughSubject<MyDatabase, Never>()

    var contacts: [Contact] = [
        Contact(id: 1, name: "Anna"), Contact(id: 2, name: "Beto"),
        Contact(id: 3, name: "Jack"), Contact(id: 4, name: "Sam")
    ] {

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/* Box sizing rules */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Remove default padding */
ul[class],
ol[class] {