resultDict =  primaryDict.Keys.Intersect(secondaryDict.Keys).ToDictionary(t => t, t => primaryDict[t]);
	or, alternatively:
	resultDict =  primaryDict.Where(x => secondaryDict.ContainsKey(x.Key)).ToDictionary(x => x.Key, x => x.Value);




	[GeneratedRegex("^([a-zA-Z_][0-9a-zA-Z_-]+)$")]
	public static partial Regex G_REGEX_NAME();
	G_REGEX_NAME().IsMatch(text)


	s1[1..^1]


	public bool HasMasters
		=> Masters?.Any() ?? false;



	public HtmlString AppNameHtml
		=> _appNameHtml ??= AppName.ToHtml();
	private HtmlString _appNameHtml;


	var useSSO = (bool)(ViewData.Eval("useSSO") ?? false);


	@model dynamic
	@{
		var key1 = (string)(ViewData.Eval("key1") ?? "");
		var key2 = (int)(ViewData.Eval("key2") ?? 0);
	}
	<p>Test: "@key1", @key2</p>
	<p>@Current.QueryString.Helper.GetQueryString(Current.HostApplicationUrl)</p>


	TempData["ListRouteValues"] is RouteValueDictionary r1


	// Encoding ENCODING_WINDOWS1251(1251), ENCODING_KOI8R(20866), ENCODING_CP866(866), ENCODING_ISO88591("iso-8859-1")
	Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);



	string style1 = "test" switch
	{
		"test" => "background-image: url('https://priem.guap.ru/images/sky-mag.png');",
		_ => "background-image: url('https://priem.guap.ru/images/sky-mag.png');"
	};



	Func<int, int, string> createString = (a, b) => $"{a}{b}";