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Why do you not use C for your web apps?

...a not far away), finding the right API call is a challenge on its own. The time wasted to find this (and then to find how badly the native API call is implemented), the time to learn by hart it for the next time you need it, all this time is depriving you from the time necessary to resolve your appl...
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Avoid trailing zeroes in printf()

...ision. Power to the 0.5 rounding. EDIT Ok, this answer was edited a few times and I lost track what I was thinking a few years back (and originally it did not fill all the criteria). So here is a new version (that fills all criteria and handles negative numbers correctly): double f = 1234.056789...
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push_back vs emplace_back

... we have to repeatedly include subheaders. Due to a combination of our time constraints and compilation speed concerns, we haven't simulated variadic templates in our emplace functions. When variadic templates are implemented in the compiler, you can expect that we'll take advanta...
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How to know when UITableView did scroll to bottom in iPhone

... Unfortunately that my App will update data real time for existing rows in this table, so this way may get more content when the table is not scroll at all. – Son Nguyen Feb 28 '11 at 3:58 ...
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How to delete multiple buffers in Vim?

... I too had a need for this functionality all the time. This is the solution I have in my vimrc. function! GetBufferList() return filter(range(1,bufnr('$')), 'buflisted(v:val)') endfunction function! GetMatchingBuffers(pattern) return filter(GetBufferList(), 'bufn...
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Get time difference between two dates in seconds

.../ Do your operations var endDate = new Date(); var seconds = (endDate.getTime() - startDate.getTime()) / 1000; Or even simpler (endDate - startDate) / 1000 as pointed out in the comments unless you're using typescript. The explanation You need to call the getTime() method for the Date objects, a...
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git: Your branch is ahead by X commits

...out understanding the situation, you are potentially producing trouble for times ahead (rewritten history!). If you understand the situation, this will not be the fix for it. Please think before you type when using git, and don't ever mindlessly rewrite history! – cmaster - rei...
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

... as a key. There may be many reads in-flight, and we want to store a start timestamp to each. How? We could construct a unique identifier for each read, and use that as the key. But because kernel threads can only be executing one syscall at a time, we can use the thread ID as the unique identifier,...
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How can I swap positions of two open files (in splits) in vim?

... I wish I could upvote you ten times! I did have to use noremap in the mappings to make it work. Not sure why, but hopefully that helps anyone who finds this later. :D – wes Feb 5 '11 at 23:28 ...
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403 Forbidden vs 401 Unauthorized HTTP responses

...ll not work, unless credentials changed, which is very unlikely in a short time span. Special case: Can be used instead of 404 to avoid revealing presence or non-presence of resource (credits @gingerCodeNinja) NOT FOUND: Status code (404) indicating that the requested resource is not available. Use...