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When to use Task.Delay, when to use Thread.Sleep?
...ch. If you're using a thread pool this could also cause a new thread to be allocated. Both operations are quite heavy whereas the cooperative multi-tasking provided by Task.Delay etc is designed to avoid all of that overhead, maximize throughput, allow cancellation, and provide cleaner code.
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Passing enum or object through an intent (the best solution)
...g, Parcelable).
UPDATE: Please note wreckgar's comment that enum.values() allocates a new array at each call.
UPDATE: Android Studio features a live template ParcelableEnum that implements this solution. (On Windows, use Ctrl+J)
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Where do “pure virtual function call” crashes come from?
...s "pure virtual function call" scenario usually happens when the object is allocated on the memory pool, while an object is deleted, the underlying memory is actually not reclaimed by OS, it is still there accessible by the process.
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Discuz菜单栏下面广告怎么弄？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...idc.comsenz.com/" target="_blank">官方主机</a> — <a href="http://www.phpchina.com/html/trainsubject.html?utm_source=phpchina&utm_medium=banner&utm_campaign=item" target="_blank">PHP培训</a></em>
<em><a href="http://www.discuz.net/thread-1268232-1-1.html" target="_blank">招贤纳士...
How do I vertically center UITextField Text?
...nt. So he will have something like UITextField *textField = [[UITextField alloc] init];. If you use a different variable name (anything other than textField after the *), you need to do yourDifferentVariableNameHere.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter instead.
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How is the Linux kernel tested ?
.../debug/kmemleak.
Kmemcheck traps every read and write to memory that was allocated dynamically (i.e. with kmalloc()). If a memory address is read that has not previously been written to, a message is printed to the kernel log. Also is a part of Linux Kernel
Fault Injection Framework (included in ...
mongoose vs mongodb (nodejs modules/extensions), which better? and why?
... abstraction layer will be way smaller, then mongoose's.
I'm coming from PHP world, there we had raw sql with depreciated mysql_ functions, then we got PDO - object orientated abstraction layer to communicate with sql. Or you can choose some heavy ORM like Doctrine to have similar stuff to mongoos...
Linux/Unix command to determine if process is running?
...ong enough for PIDs to wrap around, and another process may then have been allocated the same PID you're checking for. stackoverflow.com/questions/11323410/linux-pid-recycling
– claymation
Apr 15 '16 at 3:28
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nginx启用gzip压缩，大大降低网站流量 - 更多技术 - 清泛网 - 专注C/C++及内核技术
.../x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png application/vnd.ms-fontobject font/ttf font/opentype font/x-woff image/svg+xml;
# 是否在http header中添加vary: Accept-Encoding，建议开启
gzip_vary on;
# 对IE6和以下的...
请教一个有关WEB 客户端 1的问题 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...WEB 客户端 1 通过 URL将参数传输给下图中地址并调用一个PHP文件，但是出现了错误信息“ERROR 1101：unable to get a response with the specified url"
我直接通过浏览器传输，显示结果正确。借助WEB浏览框如下图所示那样，也获得正确结果。
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