import { useEffect } from "react";

const useClickOutside = (ref, handler) => {
  useEffect(() => {
    const listener = (event) => {
      if (!ref.current || ref.current.contains(event.target)) {
        return;
      }
      handler(event);
    };
    document.addEventListener("mousedown", listener);
    document.addEventListener("touchstart", listener);

    return () => {
      document.removeEventListener("mousedown", listener);
      document.removeEventListener("touchstart", listener);
    };
  }, [handler, ref]);
};

export { useClickOutside };

import { useClickOutside } from "./useClickOutside";

// ...

export const ReducerButtons = () => {
  const [state, dispatch] = useReducer(reducer, initialState);

  const ref = useRef<HTMLDivElement>(null);
  useClickOutside(ref, () => {
    console.log("clicked outside");
  });

  return (
    <div ref={ref}>
      // ...
    </div>
  );
};

const useClickOutside = (
  ref: React.RefObject<HTMLDivElement>,
  handler: () => void
) => {

const listener = (event: React.MouseEvent<HTMLElement>) => {

ref.current.contains(event.target as Node)

const useClickOutside = (
  ref: React.RefObject<HTMLDivElement>,
  handler: (event: React.MouseEvent<HTMLElement>) => void
) => {

(method) Document.addEventListener<"mousedown">(type: "mousedown", listener: (this: Document, ev: MouseEvent) 
=> any, options?: boolean | AddEventListenerOptions | undefined): void (+1 overload)

(method) Document.addEventListener<"touchstart">(type: "touchstart", listener: (this: Document, ev: TouchEvent)
 => any, options?: boolean | AddEventListenerOptions | undefined): void (+1 overload)

const useClickOutside = (
  ref: React.RefObject<HTMLDivElement>,
  handler: (event: MouseEvent | TouchEvent) => void
) => {
  useEffect(() => {
    const listener = (event: MouseEvent | TouchEvent) => {

const useClickOutside = (
  ref: React.RefObject<HTMLElement>,
  handler: (event: MouseEvent | TouchEvent) => void
) => {

import { useEffect } from "react";

const useClickOutside = (
  ref: React.RefObject<HTMLElement>,
  handler: (event: MouseEvent | TouchEvent) => void
) => {
  useEffect(() => {
    const listener = (event: MouseEvent | TouchEvent) => {
      if (!ref.current || ref.current.contains(event.target as Node)) {
        return;
      }
      handler(event);
    };
    document.addEventListener("mousedown", listener);
    document.addEventListener("touchstart", listener);

    return () => {
      document.removeEventListener("mousedown", listener);
      document.removeEventListener("touchstart", listener);
    };
  }, [handler, ref]);
};

export { useClickOutside };

In Visual Studio 2013, there were a handful of templates that supported developing ASP.NET projects with various frameworks and data structures.  Some of those project templates from the Visual Studio 2012 era have been removed from the Visual Studio 2015 install and added to the Visual Studio Extension gallery as the ASP.NET Project Templates extension for Visual Studio 2015. 

To be able to make full use of the system catalog to find out more about a database, you need to be familiar with the metadata functions. They save a great deal of time and typing when querying the metadata. Once you get the hang of these functions, the system catalog suddenly seems simple to use, as Robert Sheldon demonstrates in this article. 

CREATE SEARCH PROPERTY LIST WordSearchPropertyList;
GO

ALTER SEARCH PROPERTY LIST WordSearchPropertyList
   ADD 'Authors'
   WITH (PROPERTY_SET_GUID = 'F29F85E0-4FF9-1068-AB91-08002B27B3D9',
             PROPERTY_INT_ID = 4,
             PROPERTY_DESCRIPTION = 'System.Authors - authors of a given item.');
GO

 -- Check the Stopwords list
SELECT w.stoplist_id,
   l.name,
   w.stopword,
   w.language
FROM sys.fulltext_stopwords AS w
   INNER JOIN sys.fulltext_stoplists AS l
     ON w.stoplist_id = l.stoplist_id;

 -- Stopwords list
CREATE FULLTEXT STOPLIST SQLStopList;
GO

-- Add a stopword
ALTER FULLTEXT STOPLIST SQLStopList
 ADD 'SQL' LANGUAGE 'English';
GO

 create fulltext catalog catalog_name
on filegroup filegroup_name
in path  'rootpath'
with some_options
as default
authoriztion owner_name
accent_sensivity = {on|off}

 -- Full-text catalog
CREATE FULLTEXT CATALOG DocumentsFtCatalog;
GO

-- Full-text index
CREATE FULLTEXT INDEX ON dbo.Documents
(
  docexcerpt Language 1033,
  doccontent TYPE COLUMN doctype
  Language 1033
  STATISTICAL_SEMANTICS
)
KEY INDEX PK_Documents
ON DocumentsFtCatalog
WITH STOPLIST = SQLStopList,
  SEARCH PROPERTY LIST = WordSearchPropertyList,
  CHANGE_TRACKING AUTO;
GO

 CREATE TABLE dbo.Documents
(
  id INT IDENTITY(1,1) NOT NULL,
  title NVARCHAR(100) NOT NULL,
  doctype NCHAR(4) NOT NULL,
  docexcerpt NVARCHAR(1000) NOT NULL,
  doccontent VARBINARY(MAX) NOT NULL,
  CONSTRAINT PK_Documents
PRIMARY KEY CLUSTERED(id)
);

-- Insert data
-- First row
INSERT INTO dbo.Documents
(title, doctype, docexcerpt, doccontent)
SELECT N'Columnstore Indices and Batch Processing', 
 N'docx',
 N'You should use a columnstore index on your fact tables,
   putting all columns of a fact table in a columnstore index. 
   In addition to fact tables, very large dimensions could benefit 
   from columnstore indices as well. 
   Do not use columnstore indices for small dimensions. ',
 bulkcolumn
FROM OPENROWSET
 (BULK 'C:\Users\Vahid\Desktop\Updates\fts_docs\ColumnstoreIndicesAndBatchProcessing.docx', 
  SINGLE_BLOB) AS doc;

-- Second row
INSERT INTO dbo.Documents
(title, doctype, docexcerpt, doccontent)
SELECT N'Introduction to Data Mining', 
 N'docx',
 N'Using Data Mining is becoming more a necessity for every company 
   and not an advantage of some rare companies anymore. ',
 bulkcolumn
FROM OPENROWSET
 (BULK 'C:\Users\Vahid\Desktop\Updates\fts_docs\IntroductionToDataMining.docx', 
  SINGLE_BLOB) AS doc;

-- Third row
INSERT INTO dbo.Documents
(title, doctype, docexcerpt, doccontent)
SELECT N'Why Is Bleeding Edge a Different Conference', 
 N'docx',
 N'During high level presentations attendees encounter many questions. 
   For the third year, we are continuing with the breakfast Q&A session. 
   It is very popular, and for two years now, 
   we could not accommodate enough time for all questions and discussions! ',
 bulkcolumn
FROM OPENROWSET
 (BULK 'C:\Users\Vahid\Desktop\Updates\fts_docs\WhyIsBleedingEdgeADifferentConference.docx', 
  SINGLE_BLOB) AS doc;

-- Fourth row
INSERT INTO dbo.Documents
(title, doctype, docexcerpt, doccontent)
SELECT N'Additivity of Measures', 
 N'docx',
 N'Additivity of measures is not exactly a data warehouse design problem. 
   However, you have to realize which aggregate functions you will use 
   in reports for which measure, and which aggregate functions 
   you will use when aggregating over which dimension.',
 bulkcolumn
FROM OPENROWSET
 (BULK 'C:\Users\Vahid\Desktop\Updates\fts_docs\AdditivityOfMeasures.docx', 
  SINGLE_BLOB) AS doc;
GO

 -- Search property list
CREATE SEARCH PROPERTY LIST WordSearchPropertyList;
GO
ALTER SEARCH PROPERTY LIST WordSearchPropertyList
 ADD 'Authors'
 WITH (PROPERTY_SET_GUID = 'F29F85E0-4FF9-1068-AB91-08002B27B3D9',
PROPERTY_INT_ID = 4,
PROPERTY_DESCRIPTION = 'System.Authors - authors of a given item.');
GO

 -- Stopwords list
CREATE FULLTEXT STOPLIST SQLStopList;
GO
-- Add a stopword
ALTER FULLTEXT STOPLIST SQLStopList
 ADD 'SQL' LANGUAGE 'English';
GO

 -- Full-text catalog
CREATE FULLTEXT CATALOG DocumentsFtCatalog;
GO

 -- Full-text index
CREATE FULLTEXT INDEX ON dbo.Documents
(
  docexcerpt Language 1033,
  doccontent TYPE COLUMN doctype
  Language 1033
  STATISTICAL_SEMANTICS
)
KEY INDEX PK_Documents
ON DocumentsFtCatalog
WITH STOPLIST = SQLStopList,
  SEARCH PROPERTY LIST = WordSearchPropertyList,
  CHANGE_TRACKING AUTO;
GO

Bootstrap Icons v1.7.0 is here with 120 new and updated icons, taking us over 1,500 total icons for the project! It’s the largest update since the initial release, so keep reading to see what’s new. 

Barely a year after the launch of the Stack Overflow Documentation website, the decision has been taken to close it with almost immediate effect. It turns out that this ambitious project was simply financially nonviable. 

This project contains the C# 101 LINQ Samples rewritten to Kotlin. Like the existing Java LINQ Examples, Kotlin examples run and have their results displayed inside an Android App courtesy of the rich support for Kotlin in Android Studio.