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How do I get the first element from an IEnumerable in .net?
... What evidence is there that the enumerator should be avoided? Performance tests on my machine indicate that it has an approximate 10% performance gain over foreach.
– BenAlabaster
Jan 30 '09 at 22:48
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Get folder name from full file path
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@PeterMortensen, no. I just tested this and the method returns the name of the lowest level folder from the string, even if the folder path does not exist.
– vbguyny
Apr 5 '16 at 13:40
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Count the number occurrences of a character in a string
...ng, I would use a regular expression or the str.count() method. I haven't tested, but there may be a performance difference due to a slight overhead in counting all characters and appending to a dictionary rather than counting occurrences of a single substring. I would suggest writing a script to ...
When should one use final for method parameters and local variables?
...inal to every class that implement an interface (to be able to create unit tests). Also mark as final all protected/class methods, which are not going to be overridden.
– rmaruszewski
Oct 1 '08 at 10:13
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How does a Java HashMap handle different objects with the same hash code?
... hashmap immediately knows in which bucket to look, so that it only has to test against what's in that bucket.
Looking at the above mechanism, you can also see what requirements are necessary on the hashCode() and equals() methods of keys:
If two keys are the same (equals() returns true when you ...
How to create hyperlink to call phone number on mobile devices?
..., at least according to W3Cschool site but I haven't had an opportunity to test it out.
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See :hover state in Chrome Developer Tools
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In case it helps, this seems to be easier in the latest Chrome (47.0.2526.106):
Inspect element and then click on the three white dots in the left gutter:
Then choose the desired element state from this dropdown:
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How can I measure the speed of code written in PHP? [closed]
... and averaging the time and (b) using separate files for each thing you're testing. If you have several timings within one script, their order can make a difference sometimes.
– DisgruntledGoat
Jul 29 '09 at 16:48
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Remove empty strings from a list of strings
...eving data from db? list of arguments for a function while doing automated testing?
– thiruvenkadam
Feb 24 '15 at 5:22
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Google Maps Android API v2 - Interactive InfoWindow (like in original android google maps)
...wrap_content"
android:text="Button" />
</LinearLayout>
Test activity layout file (MapFragment being inside the MapWrapperLayout):
<com.circlegate.tt.cg.an.lib.map.MapWrapperLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.andro...