The clever bit about JSIO is the placeholder URLs – i.e. the “jsio.gif#…” that goes in your image src attributes and background-image CSS properties. Everything after the “#” is the filename of the image that should be displayed. It doesn’t have to be the filename at all, it could just be a single letter or number or symbol or whatever. It doesn’t matter to JSIO. To JSIO, everything after the “#” is just a key into the resources object that holds data uri encoded images. As long as the key is unique (which it will be if you use filenames, since no two files in the same directory can have the same name), JSIO is happy.
Using filenames as keys into our resources object is beneficial to humans. Much more beneficial than coordinates in a sprite, simply because (hopefully) the filenames are meaningful; they describe the image. In comparison to sprites, the JSIO resources object also makes maintaining your image data much easier as it is trivial to add or remove images without having to move other images around within the sprite (and consequently all coordinates referencing your moved image).
Another benefit of using filenames as keys into the JSIO resources object is for fallback. If JSIO detects your browser is IE7 or lower, it’ll strip out “jsio.gif#” leaving just your image key as the image src, which is hopefully a valid URL to the original image. Also, if JSIO detects you’re running IE8 and the image data is larger than 32KB it’ll do the same thing*.
* …but not yet in v1.0.0 alpha
Since the image key is after the “#” (it is the URL “fragment”), your browser won’t send multiple requests for the 1*1px jsio.gif file – it’ll just send one request, cache the response, and use it again. By the way, the jsio.gif image is just a transparent 1*1px gif (for maximum efficiency), but it could be an “spinner” image or something, which is shown temporarily whilst the JSIO resources file is downloaded.
—
This post is about JSIO – JSIO is a tiny library that allows you to make fewer requests to your server by packaging all your site image data in a JavaScript file in data uri format. The official site for JSIO can be found here: jsio.freestyle-developments.co.uk. You can read more about why I started this project here.
MavroCentral – Navigation is easy, and the platform is highly reliable.
morixo trustco portal – Professional layout, with trust company info presented clearly and organized.
cómo apostar en 1win cómo apostar en 1win
KryvoxPro – Content is detailed and made learning about their offerings surprisingly easy.
RixaroPro – Helpful and easy-to-navigate platform, ideal for beginners.
descarca mostbet https://www.mostbet2010.help
zaviro bonding services – Information is well organized and avoids unnecessary technical language.
ZylavoHub Online – The platform is visually tidy, with intuitive browsing across sections.
naviro bond network – Clear bond details with a responsive, user-friendly platform.
RavionAxis – Simple design and product details are presented in a straightforward way.
QunixVision – Clean interface, browsing features was fast and very intuitive.
1win установить приложение http://www.1win48271.help
мостбет депозит бо корт http://mostbet80573.help
trusted zylavo portal – Clear and modern interface, with capital content loading quickly and comfortably.
TorivoTrack – Easy-to-read content combined with fast-loading pages enhances the experience.
ZaviroBondBase – Very easy to navigate, information was clear and straightforward.
ZylavoOnline Hub – Pages are structured well, and navigation is smooth.
zaviro capital portal – Neat design, investment options are explained clearly and easy to follow.
1win apuestas Perú fútbol http://1win38941.help/
mostbet mines game mostbet2010.help
naviro trustco portal – Professional branding with trust company content that’s easy to read and follow.
RixvaCore – Quick and responsive, everything loads fast and is easy to access.
online gambling in latin united states, where can i play poker
online in australia and how old do you have to be to go in a casino usa, or no deposit casino real
money usa
My web site – craps instructional video
TrixoService – The support staff answered everything quickly and professionally.
Learning Zone – The website is approachable, and tutorials are concise.
LixorNavigator – The platform provides clear, actionable advice that is easy to follow.
group portal zaviro – Cohesive visuals and professional branding make the site feel credible.
ValueIdeaZone – Interactive features that encourage creativity and innovation.
Просторная 3-к квартира в центре Гродно для семьи. Ремонт мебель техника. Рядом школа набережная. Цена договорная. Посуточная аренда квартир Сморгонь Аренда 3-к квартиры в Бресте новый район. Просторная кухня лоджия вид на лес. Рядом школа садик. Подходит для большой семьи. Квартира на сутки с Wi-Fi Сморгонь Узнайте про парковку заранее. Есть ли бесплатное место во дворе или только платная городская парковка? Это критично для путешествующих на авто. квартира на длительный срок сморгонь
minimum deposit casinos usa, online casino review usa and online casino uk pay by
mobile, or new gold miner casino game (Quincy) canada
registro 1win Perú http://1win38941.help
PexraZone – Simple and effective, navigation feels natural and intuitive.
1win aviator apk https://1win48271.help
Resource Center – Everything is organized logically for smooth navigation.
TaskBase – Keeps all projects organized without unnecessary complexity.
a href=”https://qulavoholdings.bond/” />QulavoLinePro – Easy to explore and everything seems accurate and reliable.
zaviro trustline guide – Trustline concept is well explained, with a calm and trustworthy design.
Кактус казино бонусы делают старт более интересным и выгодным. После регистрации можно сразу войти в аккаунт. Официальный сайт работает без перебоев. Попробуй возможности платформы: cactus казино регистрация
1win código promocional hoy http://1win38941.help
mostbet plinko қоида mostbet plinko қоида
ValueConceptLab – Inspiring tools and layout that promote creativity.
highest education degree https://otvetnow.ru virginia divorce law
PlorixConnect – Everything is clearly organized, allowing fast access to important features.
Trust Zone – The platform feels structured, and details are transparent.
1win демо lucky jet https://www.1win30489.help
VexaroHub – Navigation is smooth and financial information is clear and trustworthy.
official zexaro bond site – Straightforward design, and bonding information is clear for all users.
TrustlineBase – Helpful and concise resources made my decision-making process much faster.
Learning Hub – The interface is minimal, and information is straightforward.
ZarvoDirect – Clean visuals make finding options straightforward.