大约有 23,000 项符合查询结果（耗时：0.0336秒） [XML]
What is an .inc and why use it?
... make PHP parse read PHP code from it. Useful when you want to create file based database and want to tell if it's a database file. like .data. You can then use @ClearCrescendo's comment above to secure it.
– Jomar Sevillejo
Dec 8 '15 at 11:28
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Numbering rows within groups in a data frame
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For making this r-faq question more complete, a base R alternative with sequence and rle:
df$num <- sequence(rle(df$cat)$lengths)
which gives the intended result:
> df
cat val num
4 aaa 0.05638315 1
2 aaa 0.25767250 2
1 aaa 0.30776611 3
5 aaa...
How to get a variable value if variable name is stored as string?
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Based on the answer: https://unix.stackexchange.com/a/111627
###############################################################################
# Summary: Returns the value of a variable given it's name as a string.
# Required ...
Choosing between std::map and std::unordered_map [duplicate]
... std::unorderded_map); if you want sorted sequential access, use something based on a vector.
Also, std::map is a balanced tree; and you have to traverse it, or re-balance it, incredibly often. These are cache-killer and cache-apocalypse operations respectively... so just say NO to std::map.
You ...
Composer install error - requires ext_curl when it's actually enabled
... The question's author seems to be running Windows. Windows is not based on Debian.
– huertanix
May 14 '15 at 16:46
3
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Is there anything like inotify on Windows?
...dFirstChangeNotification. I started writing a Windows event watcher in Go, based heavily on Jeffery Richter's examples. From the bit of testing I did, it is rock solid, and misses nothing, similar to fsevents in OS X. Gist is here: gist.github.com/pkrnjevic/7219861
– Peter Krnj...
Angular JS break ForEach
...gularJS you can iterate with $.each - which allows breaking and continuing based on boolean return value expression.
JSFiddle:
http://jsfiddle.net/JEcD2/1/
Javascript:
var array = ['foo', 'bar', 'yay'];
$.each(array, function(index, element){
if (element === 'foo') {
return true; // ...
How to vertically align a html radio button to it's label?
...l, then I may need to set margin-top to a value less than -1px (like -3px) based on how much padding I was using on that label. (I like to give my radio box labels a hover color and rounded border effect to make them look cooler.)
– Volomike
May 9 '16 at 0:26
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Best way to list files in Java, sorted by Date Modified?
...re first. My solution was to call File.listFiles and just resort the list based on File.lastModified, but I was wondering if there was a better way.
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Is String.Contains() faster than String.IndexOf()?
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My answer is 7 years old and based on the .NET 2 framework. Version 4 IndexOf() does indeed use StringComparison.CurrentCulture and Contains() uses StringComparison.Ordinal which will be faster. But really the speed differences we're talking about are mi...