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In Firebase, is there a way to get the number of children of a node without loading all the node dat
...t-side counter in a transaction secure though? It seems it could be easily hacked to artificially increase counts. This could be bad for voting systems.
– Soviut
Apr 7 '14 at 6:10
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Get url without querystring
...Is is exactly what the UriBuilder is for. All the other answers are (good) hacks.
– Nine Tails
Aug 1 '17 at 7:43
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Maintain the aspect ratio of a div with CSS
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@Maroš, I used the classic padding hack for many years and when I discovered this I was delighted by the fact both elements genuinely occupy and size the same space. If you want only one of them to size, you have the option to give the other position: absolute...
Best Practices: Salting & peppering passwords?
...fetime of the value. This means that you'd need to come up with some wonky hacks to get it to support key rotation.
This is extremely important as it's required whenever you store cryptographic secrets. Not having a mechanism to rotate keys (periodically, and after a breach) is a huge security vuln...
Is it possible to include one CSS file in another?
...t older web browsers will not support it. In fact, this is one of the CSS 'hack' to hide CSS styles from older browsers.
Refer to this list for browser support.
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Scala: What is a TypeTag and how do I use it?
...r less, because: 1) type tags don't carry erasures, 2) manifests are a big hack, and we gave up emulating its behavior with type tags. #1 can be fixed by using both ClassTag and TypeTag context bounds when you need both erasures and types, and one usually doesn't care about #2, because it becomes po...
How does SSL really work?
...sn't just theoretical. It has happened in the wild. DigiNotar was famously hacked and subsequently went bankrupt. Comodo was also hacked, but inexplicably they remain in business to this day.
Even when CAs aren't directly compromised, there are other threats in this system. For example, a governmen...
JavaScript hashmap equivalent
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Link to code is broken: mercurial.intuxication.org/hg/js-hacks/raw-file/tip/map.js
– ahcox
Apr 9 '13 at 13:38
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HTML5 check if audio is playing?
...nly if audio is really start sounds. Otherwise will be 0. It's more like a hack, but that still works even in mobile browsers, like Safari and Chrome.
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Can I force a UITableView to hide the separator between empty cells? [duplicate]
...'t add some kind of margin at the end of the table. So thanks wkw for this hack. I decided to post that here since I don't like redirect.
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