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{{Short description|Programming language learning environment}}
{{about|the surname|other uses|Yee (disambiguation)}}
{{about|the programming language|other uses|Scratch (disambiguation)}}
{{primary sources|date=February 2022}}
*[[Yu (Chinese surname)]] ([[Chinese language|Chinese]]: 余)
{{Use dmy dates|date=February 2022}}
*[[Yee (surname)]] (<small>[[simplified characters|simp.]]</small> 叶, <small>[[traditional characters|trad.]]</small> 葉) -- variants Yee, Yeh, Yip/Ip, Yap, Yapp

{{Infobox programming language
| logo = Scratchlogo.svg
| logo_alt = Scratch logo
| screenshot = Scratch 3.0 GUI.png
| screenshot caption = Scratch 3.0 editor
| paradigm = [[Event-driven programming|Event-driven]], [[Visual programming language|block-based]] programming language
| year = {{Start date and age|2003}} (first prototype)<br />{{Start date and age|2004}} (second prototype)<br />{{Start date and age|df=yes|15 May 2007}} (public launch)<ref>{{cite web|url=https://en.scratch-wiki.info/wiki/Scratch_Timeline#May|title=Scratch Timeline – Scratch Wiki|website=en.scratch-wiki.info}}</ref><br />{{Start date and age|df=yes|9 May 2013}} (Scratch 2.0)<br /> {{Start date and age|df=yes|2 January 2019}} (Scratch 3.0)|
| influenced by = [[Logo (programming language)|Logo]], [[Smalltalk]], [[HyperCard]], [[StarLogo]], [[AgentSheets]], [[AgentCubes]], [[Etoys (programming language)|Etoys]]
| influenced = [[Catrobat]],<ref>{{cite web|url=https://catrobat.org/|title=Catrobat Home|website=catrobat.org}}</ref>
[[ScratchJr]],<ref>{{cite web|url=https://scratchjr.org/|title=ScratchJr – Home|website=scratchjr.org}}</ref> [[Snap! (programming language)|Snap''!'']],<ref>{{cite web|url=https://snap.berkeley.edu/|title=Snap! Build Your Own Blocks|website=snap.berkeley.edu}}</ref> [[mBlock]], [[Turtlestitch]]
| programming language = [[Squeak]] (Scratch 0.x, 1.x)<br />[[ActionScript]] (Scratch 2.0)<br />[[HTML5]] and [[JavaScript]] (Scratch 3.0)<ref>{{cite web|url=https://scratch.mit.edu/discuss/post/3431979/|title=Converting Scratch Projects to HTML5 - Discuss Scratch|website=scratch.mit.edu|access-date=May 16, 2022}}</ref>
| operating system = [[Microsoft Windows]], [[macOS]], [[Linux]] (via renderer), [[HTML5]], [[iOS]], [[iPadOS]], and [[Android (operating system)|Android]].
| license = [[BSD licenses|BSD 3-Clause]], [[GNU General Public License|GPLv2]] and Scratch Source Code License
| file_ext = .scratch (Scratch 0.x)<br />.sb, .sprite (Scratch 1.x)<br />.sb2, .sprite2 (Scratch 2.0)<br />.sb3, .sprite3 (Scratch 3.0)
| website = {{URL|https://scratch.mit.edu/}}
| latest_release_version = {{unbulleted list|Scratch 3.0 (online editor) / {{Start date and age|2019|01|02}}|Scratch 3.29.1 (offline editor) / {{Start date and age|2022|02|27}}}}
}}

'''Scratch''' is a [[High-level programming language|high-level]] block-based [[visual programming language]] and website aimed primarily at children as an educational tool for programming, with a target audience of ages 8 to 16.<ref name=":3">{{cite web|title=Scratch – About|url=https://scratch.mit.edu/about|website=scratch.mit.edu}}</ref> Users on the site, called Scratchers, can create projects on the website using a block-like interface. Projects can be exported to [[HTML5]], [[JavaScript]], [[Android (operating system)|Android]] [[Application software|apps]] and [[.exe|EXE]] files using external tools. The service is developed by the [[MIT Media Lab]], has been translated into 70+ languages, and is used in most parts of the world.<ref name="statistics">{{cite web |url=https://scratch.mit.edu/statistics/ |title=Community statistics at a glance |website=scratch.mit.edu |access-date=18 May 2019|archive-url=https://web.archive.org/web/20160406023520/https://scratch.mit.edu/statistics/ |archive-date=6 April 2016 |url-status=live }}</ref> Scratch is taught and used in after-school centers, schools, and colleges, as well as other public knowledge institutions. As of May 8, 2022, community statistics on the language's official website show more than 104 million projects shared by over 90 million users, over 686 million total projects ever created (including unshared projects), and more than 100 million monthly website visits.<ref name="statistics" />

Scratch takes its name from a technique used by [[disk jockey]]s called "[[scratching]]", where vinyl records are clipped together and manipulated on a turntable to produce different sound effects and music. Like scratching, the website lets users mix together different media (including graphics, sound, and other programs) in creative ways by creating and 'remixing' projects, like [[video games]], [[animations]], and [[simulations]].<ref name="ScholarWorks">{{cite journal |last1=Lamb |first1=Annette |last2=Johnson |first2=Larry |date=April 2011 |title=Scratch: Computer Programming for 21st Century Learners |url=https://scholarworks.iupui.edu/bitstream/handle/1805/8622/38-4.pdf?sequence=1 |format=PDF |journal=Teacher Librarian |volume=38 |issue=4 |pages=64–68 |access-date=18 May 2019}}</ref><ref>{{cite news |url=https://news.mit.edu/2007/resnick-scratch |title=Creating from Scratch |newspaper=MIT News |first=Stephanie |last=Schorow |date=14 May 2007 |access-date=18 May 2019 |archive-url=https://web.archive.org/web/20181013032644/http://news.mit.edu/2007/resnick-scratch |archive-date=13 October 2018 |url-status=live }}</ref>


== Notable people with surname Yee (余) ==
== Notable people with surname Yee (余) ==

Revision as of 17:36, 31 August 2022

Yee
Scratch logo
File:Scratch 3.0 GUI.png
Scratch 3.0 editor
ParadigmEvent-driven, block-based programming language
First appeared2003; 21 years ago (2003) (first prototype)
2004; 20 years ago (2004) (second prototype)
15 May 2007; 17 years ago (15 May 2007) (public launch)[1]
9 May 2013; 11 years ago (9 May 2013) (Scratch 2.0)
2 January 2019; 5 years ago (2 January 2019) (Scratch 3.0)
Stable release
  • Scratch 3.0 (online editor) / January 2, 2019; 5 years ago (2019-01-02)
  • Scratch 3.29.1 (offline editor) / February 27, 2022; 2 years ago (2022-02-27)
Implementation languageSqueak (Scratch 0.x, 1.x)
ActionScript (Scratch 2.0)
HTML5 and JavaScript (Scratch 3.0)[2]
OSMicrosoft Windows, macOS, Linux (via renderer), HTML5, iOS, iPadOS, and Android.
LicenseBSD 3-Clause, GPLv2 and Scratch Source Code License
Filename extensions.scratch (Scratch 0.x)
.sb, .sprite (Scratch 1.x)
.sb2, .sprite2 (Scratch 2.0)
.sb3, .sprite3 (Scratch 3.0)
Websitescratch.mit.edu
Influenced by
Logo, Smalltalk, HyperCard, StarLogo, AgentSheets, AgentCubes, Etoys
Influenced
Catrobat,[3] ScratchJr,[4] Snap!,[5] mBlock, Turtlestitch

Scratch is a high-level block-based visual programming language and website aimed primarily at children as an educational tool for programming, with a target audience of ages 8 to 16.[6] Users on the site, called Scratchers, can create projects on the website using a block-like interface. Projects can be exported to HTML5, JavaScript, Android apps and EXE files using external tools. The service is developed by the MIT Media Lab, has been translated into 70+ languages, and is used in most parts of the world.[7] Scratch is taught and used in after-school centers, schools, and colleges, as well as other public knowledge institutions. As of May 8, 2022, community statistics on the language's official website show more than 104 million projects shared by over 90 million users, over 686 million total projects ever created (including unshared projects), and more than 100 million monthly website visits.[7]

Scratch takes its name from a technique used by disk jockeys called "scratching", where vinyl records are clipped together and manipulated on a turntable to produce different sound effects and music. Like scratching, the website lets users mix together different media (including graphics, sound, and other programs) in creative ways by creating and 'remixing' projects, like video games, animations, and simulations.[8][9]

Notable people with surname Yee (余)

Persons with surname "Yee"(余) include:

Notable people with surname Yee (爾)

Persons with surname "Yee"(爾) include:

  • Derek Yee (born 1957), film director and screenwriter

Notable people with surname Yee

  1. ^ "Scratch Timeline – Scratch Wiki". en.scratch-wiki.info.
  2. ^ "Converting Scratch Projects to HTML5 - Discuss Scratch". scratch.mit.edu. Retrieved 16 May 2022.
  3. ^ "Catrobat Home". catrobat.org.
  4. ^ "ScratchJr – Home". scratchjr.org.
  5. ^ "Snap! Build Your Own Blocks". snap.berkeley.edu.
  6. ^ "Scratch – About". scratch.mit.edu.
  7. ^ a b "Community statistics at a glance". scratch.mit.edu. Archived from the original on 6 April 2016. Retrieved 18 May 2019.
  8. ^ Lamb, Annette; Johnson, Larry (April 2011). "Scratch: Computer Programming for 21st Century Learners" (PDF). Teacher Librarian. 38 (4): 64–68. Retrieved 18 May 2019.
  9. ^ Schorow, Stephanie (14 May 2007). "Creating from Scratch". MIT News. Archived from the original on 13 October 2018. Retrieved 18 May 2019.