Operátor koalescence

Null coalescing operator - binary operator that is part of the syntax for a basic conditional expression in several programming languages. Article “Operátor koalescence” in Czech Wikipedia has 21.3 points for quality (as of July 1, 2025). The article contains 7 references and 7 sections.

This article has the best quality in English Wikipedia. Also, this article is the most popular in that (Czech) language version.

In June 2025 the article “Operátor koalescence” was edited by 1 authors in Czech Wikipedia and written by 1 authors in all languages.

Since the creation of article “Operátor koalescence”, its content was written by 11 registered users of Czech Wikipedia and edited by 172 registered Wikipedia users in all languages.

The article is cited 8 times in Czech Wikipedia and cited 109 times in all languages.

The highest Authors Interest rank from 2001:

• Local (Czech): #1680 in November 2008
• Global: #84192 in July 2015

The highest popularity rank from 2008:

• Local (Czech): #68370 in June 2018
• Global: #311187 in April 2015

There are 7 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2025 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	English (en) Null coalescing operator		41.7872
2	Chinese (zh) 空值结合运算符		31.03
3	Japanese (ja) Null合体演算子		27.0722
4	Croatian (hr) Operator nultog spajanja		24.8886
5	Korean (ko) 널 병합 연산자		23.3093
6	Czech (cs) Operátor koalescence		21.279
7	Turkish (tr) ?? operatörü		3.644

More...

The following table shows the most popular language versions of the article.

The most popular language versions of the article "Operátor koalescence" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Null coalescing operator		496 113
2	Japanese (ja) Null合体演算子		45 569
3	Czech (cs) Operátor koalescence		11 966
4	Turkish (tr) ?? operatörü		9 828
5	Chinese (zh) 空值结合运算符		2 182
6	Croatian (hr) Operator nultog spajanja		212
7	Korean (ko) 널 병합 연산자		119

More...

The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Operátor koalescence" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Null coalescing operator		2 875
2	Japanese (ja) Null合体演算子		147
3	Chinese (zh) 空值结合运算符		51
4	Turkish (tr) ?? operatörü		17
5	Czech (cs) Operátor koalescence		16
6	Croatian (hr) Operator nultog spajanja		12
7	Korean (ko) 널 병합 연산자		10

More...

The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Operátor koalescence" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Null coalescing operator		121
2	Turkish (tr) ?? operatörü		22
3	Japanese (ja) Null合体演算子		12
4	Czech (cs) Operátor koalescence		11
5	Chinese (zh) 空值结合运算符		4
6	Croatian (hr) Operator nultog spajanja		1
7	Korean (ko) 널 병합 연산자		1

More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Operátor koalescence" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Czech (cs) Operátor koalescence		1
2	English (en) Null coalescing operator		0
3	Croatian (hr) Operator nultog spajanja		0
4	Japanese (ja) Null合体演算子		0
5	Korean (ko) 널 병합 연산자		0
6	Turkish (tr) ?? operatörü		0
7	Chinese (zh) 空值结合运算符		0

More...

The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Operátor koalescence" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Null coalescing operator		62
2	Japanese (ja) Null合体演算子		17
3	Chinese (zh) 空值结合运算符		12
4	Czech (cs) Operátor koalescence		8
5	Turkish (tr) ?? operatörü		6
6	Korean (ko) 널 병합 연산자		3
7	Croatian (hr) Operator nultog spajanja		1

More...

#	Language	Value
cs	Czech Operátor koalescence
en	English Null coalescing operator
hr	Croatian Operator nultog spajanja
ja	Japanese Null合体演算子
ko	Korean 널 병합 연산자
tr	Turkish ?? operatörü
zh	Chinese 空值结合运算符

Best Rank

Czech: #68370 06.2018

Global: #311187 04.2015

Best Rank

Czech: #1680 11.2008

Global: #84192 07.2015

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information