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成功熬了四年还没死？一个IT屌丝创业者的深刻反思 - 资讯 - 清泛网 - 专注C...
...，已经达到了十七八万。
屌丝们不得不面对一个终极问题：如何盈利?
屌丝们定了三盘沙县水饺，围着一箱子的冰啤酒开始计算：按照最近一月的登陆情况来看，四百万个账号已经不活跃了。真正有商业价值的只有一百万...
Find size of object instance in bytes in c#
... instance (collections of different objects, compositions, single objects, etc)
15 Answers
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What's the difference between `1L` and `1`?
I often seen the symbol 1L (or 2L , 3L , etc) appear in R code. Whats the difference between 1L and 1 ? 1==1L evaluates to TRUE . Why is 1L used in R code?
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how to File.listFiles in alphabetical order?
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@CPU100 i believe that by using the list() instead of listFiles() gives the advantage of having only the file names without the parent directory paths, resulting in shorter strings and lesser cpu time to sort/compare.
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API pagination best practices
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memory is cheaper than network/CPU speed. So if creating a page is very expensive (in terms of network or is CPU intensive), then caching results is a valid approach @DeepakGarg
– U Avalos
Mar 26 '18 at 18:49
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Should CSS always preceed Javascript?
...; for an external stylesheet, it would continue parsing the HTML while it fetched the CSS file (in parallel).
Hence, the widely-repeated advice to put stylesheets first – they would download first, and the first script to download could be loaded in parallel.
However, modern browsers (including ...
Why would you use an ivar?
...ot spots, but none of these inefficiencies are hot spots on their own. The CPU time is just averagely spread among them, yet each of them only has such a tiny fraction of it, it seems a total waste of time to optimize it. And it's true, optimizing just one of them would help absolutely nothing, opti...
Are GUID collisions possible?
...SE1-2004-lec12.pdf, page 11. This is also true of disk drives, cd drives, etc...
GUIDs are statistically unique and the data you read from the db is only statistically correct.
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Why is Swift compile time so slow?
... with high accuracy whether your refactorings (explicit casts, type hints, etc...) are lowering compile times for specific files or not.
NOTE: technically you could also do it with xcodebuild but the output is incredibly verbose and hard to consume.
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Vagrant stuck connection timeout retrying
... startup to select whether I wanted to boot directly to ubuntu or safemode etc.
To turn on the GUI you have to put this in your vagrant config Vagrantfile:
config.vm.provider :virtualbox do |vb|
vb.gui = true
end
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