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==Definition==
The term is a [[neologism]], coined by Remy Sharp, who required a word that meant "replicate an API using JavaScript (or Flash or whatever) if the browser doesn’t have it natively" while co-writing the book ''Introducing HTML5'' in 2009.<ref name="introducing276">{{cite book |title=Introducing HTML5 |author1=Bruce Lawson |author2=Remy Sharp |section=Introducing Polyfills |pages=[https://books.google.com/books?id=a8HQCk4pbQkC&pg=PA276 276–277]}}</ref><ref name="sharp2010">{{cite web |last=Sharp |first=Remy |title=What is a polyfill? |url=http://remysharp.com/2010/10/08/what-is-a-polyfill/ |access-date=13 January 2012}}</ref> Formally, "a shim is a [[Library (computing)|library]] that brings a new API to an older environment, using only the means of that environment."<ref name="speakingjs"/> Polyfills exactly fit this definition; the term ''shim'' was also used for early polyfills.<ref>{{cite web |quote=This piece of information makes building an HTML5 compatibility shim for IE7 far easier than had previously been assumed.|title=Mistakes, Sadness, Regret |url=http://ln.hixie.ch/?start=1201080691&count=1 |author-link=Ian Hickson |author=Ian Hickson |date=2008-01-23}}</ref> However, to Sharp ''shim'' connoted non-transparent APIs and workarounds, such as [[spacer GIF]]s for layout, sometimes known as <code>shim.gif</code>, and similar terms such as ''[[progressive enhancement]]'' and ''[[graceful degradation]]'' were not appropriate, so he invented a new term.<ref name="sharp2010"/> The term is based on the [[spackling paste|multipurpose filling paste]] brand ''[[Spackling paste#Polyfilla|Polyfilla]],'' a paste used to cover up cracks and holes in walls, and the meaning "fill in holes (in functionality) in many ([[wikt:poly-|poly-]]) ways." The word has since gained popularity, particularly due to its use by [[Paul Irish]] and in [[Modernizr]] documentation.<ref name="sharp2010"/><ref>{{cite web |url=https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills |title=HTML5 Cross browser Polyfills |website=[[GitHub]] |archive-url=https://web.archive.org/web/20100928233437/http://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills |archive-date=2010-09-28}}</ref>
The distinction that Sharp makes is:<ref name="introducing276"/>
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=== Hyphenopoly.js ===
Hyphenopoly.js enables [[Syllabification#Algorithm|automatic
== See also ==
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