(function() { try { var root = typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : Function("return this")(); var doc = root.document; var html = doc && doc.documentElement; if (html) { var supportsModernCss = !!( root.CSS && root.CSS.supports && root.CSS.supports("display", "grid") && root.CSS.supports("aspect-ratio", "1 / 1") ); if (!supportsModernCss) { var htmlClass = html.className || ""; if ((" " + htmlClass + " ").indexOf(" legacy-browser ") === -1) { html.className = (htmlClass ? htmlClass + " " : "") + "legacy-browser"; } html.setAttribute("data-legacy-browser", "true"); } } if (typeof root.globalThis === "undefined") { try { Object.defineProperty(root, "globalThis", { value: root, configurable: true, writable: true }); } catch (e) { root.globalThis = root; } } if (typeof root.CustomEvent !== "function") { var CustomEventPolyfill = function(event, params) { var customEventParams = params || { bubbles: false, cancelable: false, detail: null }; var customEvent = document.createEvent("CustomEvent"); customEvent.initCustomEvent( event, !!customEventParams.bubbles, !!customEventParams.cancelable, customEventParams.detail ); return customEvent; }; CustomEventPolyfill.prototype = root.Event && root.Event.prototype; root.CustomEvent = CustomEventPolyfill; } if (root.Node && root.Node.prototype && typeof root.Node.prototype.getRootNode !== "function") { root.Node.prototype.getRootNode = function() { var node = this; while (node.parentNode) { node = node.parentNode; } return node; }; } if (root.NodeList && root.NodeList.prototype && typeof root.NodeList.prototype.forEach !== "function") { root.NodeList.prototype.forEach = Array.prototype.forEach; } if (typeof root.ResizeObserver === "undefined") { root.ResizeObserver = function() {}; root.ResizeObserver.prototype.observe = function() {}; root.ResizeObserver.prototype.unobserve = function() {}; root.ResizeObserver.prototype.disconnect = function() {}; } if (root.Intl && typeof root.Intl.Locale !== "function") { root.Intl.Locale = function Locale(tag) { var value = String(tag || "en"); var parts = value.replace(/_/g, "-").split("-"); this.baseName = value; this.language = parts[0] || "en"; this.region = parts.length > 1 ? parts[parts.length - 1].toUpperCase() : undefined; }; root.Intl.Locale.prototype.toString = function() { return this.baseName; }; } if (!Object.assign) { Object.assign = function(target) { if (target == null) { throw new TypeError("Cannot convert undefined or null to object"); } var output = Object(target); for (var i = 1; i < arguments.length; i += 1) { var source = arguments[i]; if (source == null) { continue; } for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { output[key] = source[key]; } } } return output; }; } if (!Object.values) { Object.values = function(source) { return Object.keys(source).map(function(key) { return source[key]; }); }; } if (!Object.entries) { Object.entries = function(source) { return Object.keys(source).map(function(key) { return [key, source[key]]; }); }; } if (!Object.fromEntries) { Object.fromEntries = function(entries) { if (entries == null) { throw new TypeError("Object.fromEntries() requires a single iterable argument"); } var object = {}; var iteratorKey = typeof Symbol !== "undefined" && Symbol.iterator; if (iteratorKey && entries[iteratorKey]) { var iterator = entries[iteratorKey](); var step = iterator.next(); while (!step.done) { object[step.value[0]] = step.value[1]; step = iterator.next(); } return object; } for (var i = 0; i < entries.length; i += 1) { object[entries[i][0]] = entries[i][1]; } return object; }; } if (!Object.hasOwn) { Object.hasOwn = function(object, property) { if (object == null) { throw new TypeError("Cannot convert undefined or null to object"); } return Object.prototype.hasOwnProperty.call(Object(object), property); }; } if (!Array.from) { Array.from = function(source, mapFn, thisArg) { if (source == null) { throw new TypeError("Array.from requires an array-like object"); } var output = []; var iteratorKey = typeof Symbol !== "undefined" && Symbol.iterator; var i = 0; var value; if (iteratorKey && source[iteratorKey]) { var iterator = source[iteratorKey](); var step = iterator.next(); while (!step.done) { value = step.value; output.push(mapFn ? 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My First Adventures with the DWARF 3