Ковариантность и контравариантность (программирование)

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Ковариантность и контравариантность (программирование)

Quality:

Variance - relationship between a generic type or a function and a component type on subtyping. Article "Ковариантность и контравариантность (программирование)" in Russian Wikipedia has 18.3 points for quality (as of July 1, 2025). The article contains 5 references and 11 sections.

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

Since the creation of article "Ковариантность и контравариантность (программирование)", its content was written by 8 registered users of Russian Wikipedia and edited by 305 registered Wikipedia users in all languages.

The article is cited 12 times in Russian Wikipedia and cited 127 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Russian): #22326 in June 2013
  • Global: #39711 in August 2016

The highest popularity rank from 2008:

  • Local (Russian): #65142 in October 2019
  • Global: #137912 in August 2014

There are 11 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.

Languages with the highest quality

#LanguageQuality gradeQuality score
1English (en)
Covariance and contravariance (computer science)
58.4698
2Chinese (zh)
协变与逆变
52.5012
3Persian (fa)
هم‌وردایی و پادوردایی (علوم رایانه)
29.3532
4Italian (it)
Covarianza e controvarianza (informatica)
29.0166
5Spanish (es)
Covarianza y contravarianza (ciencias de la computación)
25.7377
6Korean (ko)
공변성과 반공변성 (컴퓨터 과학)
24.7563
7German (de)
Kovarianz und Kontravarianz
22.1311
8Russian (ru)
Ковариантность и контравариантность (программирование)
18.3038
9Japanese (ja)
共変性と反変性 (計算機科学)
14.2337
10Ukrainian (uk)
Коваріантність і контраваріантність (програмування)
12.9155
More...

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

Most popular in all the time

The most popular language versions of the article "Ковариантность и контравариантность (программирование)" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Covariance and contravariance (computer science)
1 277 319
2Russian (ru)
Ковариантность и контравариантность (программирование)
199 738
3German (de)
Kovarianz und Kontravarianz
173 264
4Chinese (zh)
协变与逆变
66 109
5Japanese (ja)
共変性と反変性 (計算機科学)
40 071
6Italian (it)
Covarianza e controvarianza (informatica)
9 101
7Arabic (ar)
لاتباين وتباين مرافق وتباين معاكس
8 345
8Spanish (es)
Covarianza y contravarianza (ciencias de la computación)
6 723
9Ukrainian (uk)
Коваріантність і контраваріантність (програмування)
6 066
10Korean (ko)
공변성과 반공변성 (컴퓨터 과학)
3 464
More...

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

Most popular in June 2025

The most popular language versions of the article "Ковариантность и контравариантность (программирование)" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Covariance and contravariance (computer science)
5 178
2Russian (ru)
Ковариантность и контравариантность (программирование)
536
3Chinese (zh)
协变与逆变
335
4German (de)
Kovarianz und Kontravarianz
326
5Japanese (ja)
共変性と反変性 (計算機科学)
178
6Korean (ko)
공변성과 반공변성 (컴퓨터 과학)
76
7Ukrainian (uk)
Коваріантність і контраваріантність (програмування)
67
8Arabic (ar)
لاتباين وتباين مرافق وتباين معاكس
66
9Italian (it)
Covarianza e controvarianza (informatica)
27
10Persian (fa)
هم‌وردایی و پادوردایی (علوم رایانه)
22
More...

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

The highest AI

Language versions of the article "Ковариантность и контравариантность (программирование)" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Covariance and contravariance (computer science)
177
2German (de)
Kovarianz und Kontravarianz
51
3Japanese (ja)
共変性と反変性 (計算機科学)
19
4Chinese (zh)
协变与逆变
17
5Arabic (ar)
لاتباين وتباين مرافق وتباين معاكس
10
6Russian (ru)
Ковариантность и контравариантность (программирование)
8
7Italian (it)
Covarianza e controvarianza (informatica)
6
8Spanish (es)
Covarianza y contravarianza (ciencias de la computación)
5
9Persian (fa)
هم‌وردایی و پادوردایی (علوم رایانه)
5
10Ukrainian (uk)
Коваріантність і контраваріантність (програмування)
5
More...

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

The highest AI in June 2025

Language versions of the article "Ковариантность и контравариантность (программирование)" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Arabic (ar)
لاتباين وتباين مرافق وتباين معاكس
0
2German (de)
Kovarianz und Kontravarianz
0
3English (en)
Covariance and contravariance (computer science)
0
4Spanish (es)
Covarianza y contravarianza (ciencias de la computación)
0
5Persian (fa)
هم‌وردایی و پادوردایی (علوم رایانه)
0
6Italian (it)
Covarianza e controvarianza (informatica)
0
7Japanese (ja)
共変性と反変性 (計算機科学)
0
8Korean (ko)
공변성과 반공변성 (컴퓨터 과학)
0
9Russian (ru)
Ковариантность и контравариантность (программирование)
0
10Ukrainian (uk)
Коваріантність і контраваріантність (програмування)
0
More...

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

The highest CI

Language versions of the article "Ковариантность и контравариантность (программирование)" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Covariance and contravariance (computer science)
53
2German (de)
Kovarianz und Kontravarianz
14
3Russian (ru)
Ковариантность и контравариантность (программирование)
12
4Chinese (zh)
协变与逆变
12
5Japanese (ja)
共変性と反変性 (計算機科学)
9
6Persian (fa)
هم‌وردایی و پادوردایی (علوم رایانه)
8
7Arabic (ar)
لاتباين وتباين مرافق وتباين معاكس
6
8Ukrainian (uk)
Коваріантність і контраваріантність (програмування)
5
9Korean (ko)
공변성과 반공변성 (컴퓨터 과학)
4
10Spanish (es)
Covarianza y contravarianza (ciencias de la computación)
2
More...

Scores

Estimated value for Wikipedia:
Russian:
Global:
Popularity in June 2025:
Russian:
Global:
Popularity in all years:
Russian:
Global:
Authors in June 2025:
Russian:
Global:
Registered authors in all years:
Russian:
Global:
Citations:
Russian:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
لاتباين وتباين مرافق وتباين معاكس
deGerman
Kovarianz und Kontravarianz
enEnglish
Covariance and contravariance (computer science)
esSpanish
Covarianza y contravarianza (ciencias de la computación)
faPersian
هم‌وردایی و پادوردایی (علوم رایانه)
itItalian
Covarianza e controvarianza (informatica)
jaJapanese
共変性と反変性 (計算機科学)
koKorean
공변성과 반공변성 (컴퓨터 과학)
ruRussian
Ковариантность и контравариантность (программирование)
ukUkrainian
Коваріантність і контраваріантність (програмування)
zhChinese
协变与逆变

Popularity rank trends

Best Rank Russian:
#65142
10.2019
Global:
#137912
08.2014

AI rank trends

Best Rank Russian:
#22326
06.2013
Global:
#39711
08.2016

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Variance from Wikipedia articles about Liskov substitution principle, Robustness principle, Covariance and contravariance, Functor and Covariance. Whereas reading the article about Variance people most often go to Wikipedia articles on Subtyping, Liskov substitution principle, Type constructor, Functor and Type system.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 12 August 2025

On 12 August 2025 in multilingual Wikipedia, Internet users most often read articles on the following topics: Cristiano Ronaldo, Wednesday, Georgina Rodríguez, ChatGPT, Weapons, Jenna Ortega, deaths in 2025, Taylor Swift, Miguel Uribe Turbay, 2025–26 UEFA Champions League.

In Russian Wikipedia the most popular articles on that day were: Яндекс, Главы Курска, Анкоридж, Аляска, Уэнздей (2-й сезон), Катастрофа АПЛ «Курск», Бутусов, Юрий Николаевич, Продажа Аляски, К-141 «Курск», Корж, Макс.

About WikiRank

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