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biggest integer that can be stored in a double
... Assuming it will be 'close' but less than a 2^N, then a faster test is double dbl = 1; while (dbl + 1 != dbl) dbl *= 2; while (dbl == --dbl); which yields the same result
– Seph
Mar 6 '12 at 10:21
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Preview an image before it is uploaded
...ght = '120px';
}
That's is. Works in IE7, IE8, FF and Chrome. Please test in IE9 and report.
The idea of IE preview was found here:
http://forums.asp.net/t/1320559.aspx
http://msdn.microsoft.com/en-us/library/ms532969(v=vs.85).aspx
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Where to store global constants in an iOS application?
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In my testing, static const constants are not usable in the debugger (Xcode's lldb). "error: use of undeclared identifier .."
– jk7
Apr 4 at 2:18
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How can I remove a character from a string using Javascript?
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anyway according to tests (stackoverflow.com/questions/50463850/…) unless youre writting a high performance (10k operations per sec) javascript the performance difference is not an issue or "high price to pay" so i dont see how exactly your co...
Spring RestTemplate timeout
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The above code doesn't work in latest Spring. It gives ClassCastException java.lang.ClassCastException: org.springframework.http.client.InterceptingClientHttpRequestFactory cannot be cast to org.springframework.http.client.HttpComponentsClientHttpRequestFact...
Shortcuts in Objective-C to concatenate NSStrings
...line pretty well: string = [[NSArray arrayWithObjects:@"This", "Is", "A", "Test", nil] componentsJoinedByString:@" "];
– Rob Napier
Feb 16 '10 at 14:37
4
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Useful GCC flags for C
...e mine:
-Wextra, -Wall: essential.
-Wfloat-equal: useful because usually testing floating-point numbers for equality is bad.
-Wundef: warn if an uninitialized identifier is evaluated in an #if directive.
-Wshadow: warn whenever a local variable shadows another local variable, parameter or global v...
Open Sublime Text from Terminal in macOS
...ly got this to work on my OSX box. I used these steps to get it to work:
Test subl from your ST installation:
First, navigate to a small folder in Terminal that you want ST to open and enter the following command:
/Applications/Sublime\ Text.app/Contents/SharedSupport/bin/subl .
NOTE: You may ...
How to group dataframe rows into list in pandas groupby?
...ataFrame({'a':ukeys, 'b':[list(a) for a in arrays]})
return df2
Tests:
In [301]: %timeit f(df)
1000 loops, best of 3: 1.64 ms per loop
In [302]: %timeit df.groupby('a')['b'].apply(list)
100 loops, best of 3: 5.26 ms per loop
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Can't install RMagick 2.13.1. Can't find MagickWand.h.
...rounds. It looks like sticking with ImageMagick 6 for now.
On Mac OS X (I tested on Sierra), I used HomeBrew's versions tap like:
brew tap homebrew/versions
brew install imagemagick@6
Then, use the path shown on above installation:
PKG_CONFIG_PATH=/usr/local/opt/imagemagick@6/lib/pkgconfig gem ...