A fallback is a design pattern useful in situations, when certain advanced functionality may be used only if certain conditions are met. If the conditions cannot be fulfilled, algorithm reverts to the so-called fallback function, which achieves the goal using less sophisticated methods.
Questions tagged [fallback]
508 questions
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votes
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How do I specify fallback fonts in Java2D/Graphics2D
I'm using g.drawString(str, x, y) to draw a String with a Graphics2D object g. The current font of g does not cover all the characters of str (I have e.g. Chinese chars in there). On Mac OS X, a fallback font seems to be automatically used, but not…
Jean-Philippe Pellet
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Deserialize Kotlin enum while ignoring unknown values
I have an enum that I'd like to deserialize from JSON using kotlinx.serialization while ignoring unknown values. This is the enum
@Serializable
enum class OperatingMode {
Off, On, Auto
}
What I mean by ignoring unknowns is if I have a mode or…
Max
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how to test fallback using react testing library
I'm looking for a way to test a React.Suspense fallback using react-testing-library. Consider this example:
const MyLazyThing = lazy(() => import('./index'));
export default function MyThing(props) {
return (
Ben
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jQuery .css() fallbacks?
What is the proper way to do fallbacks with .css()? This would most commonly be used for font fallbacks but I am using it for cursor images.
Here's what I got that isn't working:
$("#dragable").css('cursor','url(images/grabbing.gif), -moz-grabbing,…
Dave
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Responsive image, picture vs img with srcset, fallback issue
After reading all day about one method or the other I am still not sure what is the best for me, all sites explain the same thing but when I want to know the things that really worries me, nobody talks about that.
My case: I have almost all my…
AngelLestat
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How to wait for document.write to complete
I am trying to write some script fall-back code so that if jQuery and jQuery Validator is not available from a CDN I load a local version. Note that the following script is in a separate file to support Content Security Policy (CSP).
(window.jQuery…
Muhammad Rehan Saeed
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How to block Websocket protocol (to simulate corporate firewalls) on Ubuntu?
I am working on a web app that uses WebSockets, and I know that many corporate firewalls block it. Now I have added Socket.io to fallback to XHR polling in case Websockets are blocked.
But I can't figure out how to simulate this environment for…
Deepak Joy Cheenath
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3 answers
HTML5 fallback images are being loaded by the browser, even though HTML5 video is supported
I have some HTML5 videos with animated GIFs as fallback. Sadly, the GIFs are being loaded even though HTML5 video is supported.
Without using javascript, is there a way to stop the browser from downloading HTML5 fallback content? If not, I will just…
degenerate
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Implementing level by level fallback
I have a class ScoreStrategy that describes how to calculate points for a quiz:
public class ScoreStrategy
{
public int Id { get; set; }
public int QuizId { get; set; }
[Required]
public Quiz Quiz { get; set; }
public decimal…
Amal K
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jquery.signalr CDN fallback
I use jQuery from Google CDN and fallback to local copy: