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Difference between java.util.Random and java.security.SecureRandom
... it, so had to set a system property java.security.egd to the right one at app startup.
– maxpolk
Jun 11 '15 at 21:04
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Catching java.lang.OutOfMemoryError?
...se resources and close down in a clean fashion. What's the worst that can happen? The JVM is dying (or already dead) anyway and by catching the Error there is at least a chance of cleanup.
The caveat is that you have to target the catching of these types of errors only in places where cleanup is po...
Parsing IPv6 extension headers containing unknown extensions
...t least without in-band signaling and other hacks. That's excusable in an application protocol where you control both ends and only have to account for new versions of your app, but not in something designed to last for... hundreds of years?
– AdamIerymenko
Ju...
The definitive guide to form-based website authentication [closed]
...server will be able to read logins as they pass through. This type of wiretapping is done routinely by governments, but in general, we won't address 'owned' wires other than to say this: Just use HTTPS.
In essence, the only practical way to protect against wiretapping/packet sniffing during login is...
Catch an exception thrown by an async void method
...t.com/en-us/magazine/jj991977.aspx
Note that using Wait() may cause your application to block, if .Net decides to execute your method synchronously.
This explanation http://www.interact-sw.co.uk/iangblog/2010/11/01/csharp5-async-exceptions is pretty good - it discusses the steps the compiler take...
ios Upload Image and Text using HTTP POST
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Here's code from my app to post an image to our web server:
// Dictionary that holds post parameters. You can set your post parameters that your server accepts or programmed to accept.
NSMutableDictionary* _params = [[NSMutableDictionary alloc]...
Grasping the Node JS alternative to multithreading
...read and set a callback when it's done which means that the read could be happening on a different thread/core while the main node.js program is doing something else.
But from a node.js point of view, it's entirely single threaded and won't directly use more than one core.
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Scrolling a flexbox with overflowing content
...g post: http://geon.github.io/programming/2016/02/24/flexbox-full-page-web-app-layout
Basically, to make a flexbox cell scrollable, you have to make all its parents overflow: hidden;, or it will just ignore your overflow settings and make the parent larger instead.
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Proper way to declare custom exceptions in modern Python?
...ture" - is this still intended for deprecation? Python 3.7 still seems to happily accept Exception(foo, bar, qux).
– mtraceur
Apr 20 '18 at 22:36
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Why does Internet Explorer not send HTTP post body on Ajax call after failure?
...Ajax request with a Connection: Close line in the response. This keeps IE happy but causes every Ajax request to open a new connection. This can have a significant performance impact, especially on high latency networks.
The issue is triggered easily if Ajax requests are made in rapid succession. Fo...