Polyfill

Polyfill is used by 1.12% of sites

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A polyfill, also known as a polyfiller, is a piece of code or a JavaScript library that provides a browser with functionality that is not natively supported. It allows developers to use new features or APIs in older browsers that do not have built-in support for those features.

The term "polyfill" is derived from the words "poly" (meaning "many") and "fill" (meaning to "fill the gaps"). Polyfills fill the gaps in browser support by replicating the functionality of newer features using JavaScript code.

The main purpose of a polyfill is to ensure backward compatibility, allowing developers to write code using modern standards and APIs while ensuring that it works in older browsers. Polyfills typically detect whether a specific feature is supported by the browser and, if not, provide a fallback implementation.

Here are a few key points about polyfills:

Feature Detection: Polyfills typically use feature detection techniques to determine if a particular feature is supported by the browser. They check for the existence of specific methods, objects, or properties associated with the feature before applying the polyfill.

Conditional Loading: Polyfills can be conditionally loaded based on whether the browser needs them. Modern JavaScript bundlers and build tools provide mechanisms to load polyfills only when necessary, minimizing unnecessary code execution.

Customizability: Polyfills can be customized and tailored to specific requirements. Developers can choose which polyfills to include based on the targeted browser support or specific features required by their application.

Performance Considerations: While polyfills enable the use of modern features in older browsers, they come with a performance overhead. Polyfills add extra code that needs to be downloaded and executed by the browser, potentially impacting page load times and runtime performance.

Feature Completeness: Polyfills may not always provide a complete implementation of a feature or API. They often focus on the most commonly used parts and may have limitations or subtle differences compared to the native implementation in modern browsers. It is essential to review the documentation and limitations of each polyfill to ensure it meets the specific requirements of the project.

Polyfills have been widely adopted as a strategy to achieve cross-browser compatibility and leverage modern web technologies while supporting older browsers. Numerous polyfills are available for different features and APIs, and they are commonly used to enable features like HTML5, CSS3, new JavaScript methods, and other browser-specific functionality.

As browsers continue to evolve and add support for new features, the need for certain polyfills may decrease. However, they remain valuable tools for ensuring broad compatibility and bridging the gap between older and newer browser versions.

Top Websites using Polyfill

: Bounce ratePages / VisitVisit duration
901wyzecam.com Wyze | Making Great Technology Accessible See the moments that matter. 1080p full HD, night vision, 2-way audio, 14-day free cloud storage, continuous recording, time lapse, and more.: 38.27 3.73 03:55
902cartersoshkosh.ca Access to this page has been denied px-captcha: 41.30 6.25 13:37
903gardner-white.com Gardner-White Furniture | Michigan furniture stores Sells living room, dining room, and bedroom furniture, mattresses, and accessories. Buy furniture online at Gardner-White Furniture, or visit one of our stores near Detroit, Michigan. Since 1912, Gardner-White Furniture has been setting the standard in quality, value and service. We strive to provide the best furniture, with great style for less than you'd expect to pay.: 83.32 19.00 04:00
904radioevangelho.com.br Rádio Gospel Online, Rádio Evangélica Online, Rádio Gospel Evangélica | Cuiabá MT Brasil Rádio Gospel Online, Rádio Evangélica Online, Rádio Gospel Ao Vivo, Rádio Evangelica Ao Vivo, Ouvir Rádio Gospel, Ouvir Rádio Evangélica, Música Gospel para Ouvir Online. Cuiabá-MT Brasil. Rádio Evangélica de Cuiabá-MT. Rádio Gospel de Cuiabá-MT. Rádio Gospel Brasileira, Rádios Evangélicas Brasileiras. Web Rádio Gospel: n/a 17.00 n/a
905monwest.com: n/a 13.30 n/a
906therobinsongrand.com Robinson Grand Performing Arts Center | 304-624-1500 | Clarksburg, WV The Robinson Grand Theater first opened its doors in 1913 in downtown Clarksburg. After an extensive restoration, renovation, and additional in 2018, the new Robinson Grand Performing Arts Center is a catalyst for revitalization in the area.: 10.16 8.12 46:42
907myswitzerland.com Switzerland Travel & Vacation | Switzerland Tourism discover switzerland and get tips where to go and what to do. from people who need to know, real switzerland experts from switzerland tourism, the national tourism organization.: 59.26 2.48 01:22
908yola.com Yola - Make a Free Website Yola.com is a leading SaaS provider of website services focused on helping small and medium-sized businesses build and grow their online presence. Yola's flagship product is an award winning drag-and-drop Sitebuilder that makes it easy for users without any technical knowledge to build a professional website. A one-stop-shop for SMBs, Yola offers website hosting, domain name registration, ecommerce, mobile and Facebook publishing, search engine optimization tools, lead generation and social network integration. Make a free website with our free website builder. We offer free hosting and a free website address. Get your business on Google, Yahoo & Bing today.: 41.70 4.30 06:50
909rantpets.com RantPets RantPets is the premier online destination for pet lovers of all kinds, from furry friends to ones that creep, crawl, swim and fly.: n/a 1.10 n/a
910swipek12.com: n/a 19.00 n/a
911agilone.com Use Cases - Acquia CDP | Acquia Eliminate silos to unify data and gain a complete understanding of your customer. Acquia CDP gives you insights to engage, connect, and convert.: n/a 7.50 n/a
912letsplaylez.com
Let's Play Lez - *** *** *** in Full HD
Let's Plat Lez is the hottest *** *** site on the web! You will find hot one on one action along with raunchy *** ***s!: n/a 11.00 n/a
913lldy.cc: n/a 4.00 n/a
914aksibaykus.com: n/a 2.57 n/a
915capchase.com Capchase - Upfront cashflow to fund your growth The only solution for recurring revenue companies that scales at your pace – without dilution or debt.: n/a 5.20 n/a
916eduk.com.br
Os mel***s cursos online: ao vivo de graça | eduK.com.br
Desenvolva-se profissionalmente com vídeo-cursos online e conquiste seu certificado. Matricule-se e acesse para sempre, os cursos nunca expiram. Experimente antes de pagar!: n/a 2.60 n/a
917deseretbook.com Deseret Book: Books, DVDs, Music, Art & more for LDS Families - Deseret Book Specializes in books and information for Latter Day Saints. Also art, and scriptures. Find thousands of LDS books, movies, music and more. Looking for an LDS related gift? Find it at Deseret Book!: 40.05 4.20 04:47
918menupages.com menupages.com Searchable directory by cuisine or area. Includes clickable Manhattan map, ratings, reviews, and restaurant location maps.: n/a 1.77 n/a
919aluguetemporada.com.br AlugueTemporada: Alugue Casas e Imóveis por Temporada Guia de imóveis para alugar por temporada em mais 50 destinos no Brasil. Fotos de casas, apartamentos, flats, sítios, fazendas, preços e detalhes completos, anúncio de imoveis para aluguel. O maior e mais seguro site de aluguel por temporada do Brasil. Explore mais de 25 mil imóveis para alugar em todo o país. Temos o imóvel perfeito para vocês!: n/a 7.30 n/a
9209livesnation.com: n/a 30.00 n/a
921satakunnankansa.fi Satakunnan Kansa Länsi-Suomi Porin, Rauman ja Satakunnan tärkeimmät uutiset, parhaat livelähetykset, mielenkiintoisimmat ilmiöt ja ihmiset. Lue ja katso!: 47.81 3.73 03:51
922beademporium.co.uk: n/a 18.00 n/a
923onlinepalmreadings.com: n/a 19.00 n/a
924embraceyourgreatness.com: n/a 19.00 n/a
925mydiba.me دیبا موویز | دانلود رایگان فیلم و سریال: 47.86 2.62 02:35
926trumpcodes.com: n/a 5.80 n/a
927globalsuccessinc.com: n/a 10.70 n/a
928polkadotrugs.net: n/a 8.50 n/a
929polkadotplum.com: n/a 8.50 n/a
930ecode360.com
eCode360
The General Code eCode360 web site can be used to search and browse online muni***l codes, allowing 24-hour access to the codified legislation and other laws: n/a 4.70 n/a
931jmgold.com: n/a 6.90 n/a
932eduflix.tv 403 Forbidden 403 Forbidden: n/a 31.00 n/a
933hemenalreferans.com: n/a 26.00 n/a
934thejoyfulspringer.com: n/a 21.00 n/a
935easywpseo.com: n/a 2.06 n/a
936worddial.com: n/a 3.20 n/a
937peek.com Book Amazing Activities, Tours, and more | Peek Peek is a one-stop shop to discover and book amazing activities, tours, and more. We curate quality experiences, display them beautifully, and make them bookable online.: 42.05 4.43 22:28
938nontongp.xyz NontonGP - Live streaming MotoGP, WSBK, F1 dan Piala Dunia Situs live streaming eksklusif MotoGP, WSBK, MXGP, IOM TT, F1, Piala Dunia dan Siaran Ulang. Lengkap semua sesi dengan kualitas fullHD.: 31.08 3.27 19:18
939ap7am.com AP7AM | Telugu People's Home page | Telugu News.. ap7am.com is an interactive ' News' portal developed with a view of making it the Home page to Telugu People living around the Globe...: 33.26 3.84 05:25
940chinesean.com Global Chinese Affiliate Network - China, Hong Kong, Taiwan, Asia ChineseAN is a real breakthrough only made possible by creatively solving all the challenges posed by cross-border operation. ... ChineseAN is operated by Ignite Vision Limited which is a company based in Hong Kong. The company specializes in offering innovative internet and e-commerce services. We invent major breakthroughs and offer unique value in the service we provide. Our team possess outstanding track record in e-commerce and online marketing. ...: 53.35 7.40 22:42
941hoohua.com: n/a 2.50 n/a
9420796sh.com: n/a 13.00 n/a
943mmfj.com: n/a 3.70 n/a
944funnytruth.com Funnytruth.com Welcome to Funnytruth.com: n/a 4.21 n/a
945redbox.ca redbox.ca Preview new movie rentals, DVDs and Blu-Rays at Redbox Canada and make a night out of it with the hottest new releases. With more local DVD kiosks, chances are there's a Redbox Canada kiosk in your area. Check out all DVD rentals now.: n/a 3.40 n/a
946tessatura.com: n/a 3.20 n/a
947wonderyard.com: n/a 5.50 n/a
948secureassets.com: n/a 4.54 n/a
949alterian.com alterian.com Alterian helps organizations to create relevant, effective and engaging experiences with their audience that create value and reinforce commitment to their brand, through the use of the Alterian Integrated Marketing Platform.: n/a 3.40 n/a
950casamundonews.de: n/a 5.10 n/a

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