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What does the “expand” option do in grunt-contrib-copy? The examples all use it but the docs say not
... I added the usefull example provided in the doc. Its more clear now.
– Rémi Becheras
Aug 11 '15 at 21:12
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How to unset a JavaScript variable?
...123 };
var foo = new Foo();
// foo.bar is 123
foo.bar = 456;
// foo.bar is now 456
delete foo.bar;
// foo.bar is 123 again.
So be careful.
EDIT: My answer is somewhat inaccurate (see "Misconceptions" at the end). The link explains all the gory details, but the summary is that there can be big dif...
How do I create an Excel (.XLS and .XLSX) file in C# without installing Microsoft Office?
... (.xlsx files). There's also NPOI which works with both.
There are a few known bugs with each library as noted in the comments. In all, EPPlus seems to be the best choice as time goes on. It seems to be more actively updated and documented as well.
Also, as noted by @АртёмЦарионов bel...
relative path in require_once doesn't work
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There is now a troubleshooting checklist for this frequent error here : stackoverflow.com/a/36577021/2873507
– Vic Seedoubleyew
Apr 12 '16 at 15:24
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Fixing the order of facets in ggplot
...he facet_grid(.~size) to facet_grid(.~size_f)
Then plot:
The graphs are now in the correct order.
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In-Place Radix Sort
...it while waiting for my own bioinformatics code to run. The version above now is actually tested and works. For 10 million sequences of 5 bases each, it's about 3x faster than an optimized introsort.
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Regular expression for a string containing one word but not another
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tail -f mylogfile | grep --line-buffered -v 'bot\|spider' | grep ' / '
Now becomes (with -P perl switch):
tail -f mylogfile | grep -P '^(?!.*(bot|spider)).*\s\/\s.*$'
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Remote branch is not showing up in “git branch -r”
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@kan Do you know why this sometimes happens? It just happen to me when git clone a project. I don't recall having done anything special with my local git.
– dotnetCarpenter
Feb 22 '17 at 22:51
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onKeyPress Vs. onKeyUp and onKeyDown
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This is of critical importance if you are doing something that relies on knowing the new value after the input rather than the current value such as inline validation or auto tabbing.
Scenario:
The user types 12345 into an input element.
The user selects the text 12345.
The user types the letter...
Java: when to use static methods
...pgToKpl(double mpg)
...which would be static, because one might want to know what 35mpg converts to, even if nobody has ever built a Car. But this method (which sets the efficiency of one particular Car):
void setMileage(double mpg)
...can't be static since it's inconceivable to call the metho...