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getenv() vs. $_ENV in PHP
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Added getenv() advantage: you don't need to check isset/empty before access. getenv() won't emit notices.
– Steve Clay
Apr 8 at 18:28
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Checking length of dictionary object [duplicate]
...get the "length" by a for..in statement on the object, since length is not set, and increment a counter.
I'm confused as to why you need the length. Are you manually setting 0 on the object, or are you relying on custom string keys? eg obj['foo'] = 'bar';. If the latter, again, why the need for len...
Is there a simple way to remove multiple spaces in a string?
...ed Oct 9 '09 at 21:52
Taylor LeeseTaylor Leese
44.7k2727 gold badges102102 silver badges138138 bronze badges
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Ruby function to remove all white spaces?
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@slothbear, it's not a regex, it's a small set of patterns that resemble regexes. As for the documentation #delete is said to work similarly to #count. You can try it in the console as well.
– ndnenkov
Feb 5 '17 at 15:36
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How does a hash table work?
...to a smaller space.
The main idea in this is to divide your entire data set into segments as to speed up the actual searching which is usually time consuming. In our example above, each of the 300 filing cabinet would (statistically) contain about 100 records. Searching (regardless the order) t...
Under what circumstances are linked lists useful?
... affect visible performance much. In a busy-CPU benchmark it was easy to upset Java, and get very bad worst case allocation time. This was many years ago, though, and generational garbage collection has markedly reduced the total cost of GC since.
– Steve Jessop
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Split files using tar, gz, zip, or bzip2 [closed]
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Edit: As @Charlie stated in the comment below, you might want to set a prefix explicitly because it will use x otherwise, which can be confusing.
split -b 1024m "file.tar.gz" "file.tar.gz.part-"
// Creates files: file.tar.gz.part-aa, file.tar.gz.part-ab, file.tar.gz.part-ac, ...
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slf4j: how to log formatted message, object array, exception
What is the correct approach to log both a populated message and a stack trace of the exception?
2 Answers
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How to change color in circular progress bar?
...ff"
android:angle="0"/>
</shape>
</rotate>
Set startColor and endColor as per your choice .
Now set that progress.xml in ProgressBar's backgound .
Like this
<ProgressBar
android:id="@+id/ProgressBar01"
android:layout_width="wrap_content"
android:layout_heig...
How to kill all processes with a given partial name? [closed]
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Use pkill -f, which matches the pattern for any part of the command line
pkill -f my_pattern
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