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Difference between array_map, array_walk and array_filter
...nput array(s) while array_walk can; in particular, array_map never changes its arguments.
Array Keys Access:
array_map cannot operate with the array keys, array_walk can.
Return Value:
array_map returns a new array, array_walk only returns true. Hence, if you don't want to create an array as a...
What is the difference between Serialization and Marshaling?
...ques (such as RPC), the term "Marshaling" is used but don't understand how it differs from Serialization. Aren't they both transforming objects into series of bits?
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How to prevent multiple instances of an Activity when it is launched with different Intents
I've come across a bug in my application when it is launched using the "Open" button on the Google Play Store app (previously called Android Market). It seems that launching it from the Play Store uses a different Intent than launching it from the phone's application menu of icons. This is leadi...
Command-line svn for Windows?
...nding option is not checked.
The svn.exe executable is not standalone and it depends on some other files in the distribution but this should not be a problem in most cases.
Once installed you might need to add the folder containing svn.exe to the system PATH as described here so that it is availab...
Is there a CSS selector for elements containing certain text?
...named attribute in an element. I don't see anything for matching content within an element, though.
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How can I make XSLT work in chrome?
I have an XML document here that is served with a corresponding XSL file . The transformation is left to be executed client-side, without JavaScript.
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Update ViewPager dynamically?
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When using FragmentPagerAdapter or FragmentStatePagerAdapter, it is best to deal solely with getItem() and not touch instantiateItem() at all. The instantiateItem()-destroyItem()-isViewFromObject() interface on PagerAdapter is a lower-level interface that FragmentPagerAdapter uses to im...
Why does python use 'else' after for and while loops?
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It's a strange construct even to seasoned Python coders. When used in conjunction with for-loops it basically means "find some item in the iterable, else if none was found do ...". As in:
found_obj = None
for obj in objects:...
Are there any smart cases of runtime code modification?
Can you think of any legitimate (smart) uses for runtime code modification (program modifying it's own code at runtime)?
1...
java.util.Date vs java.sql.Date
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Congratulations, you've hit my favorite pet peeve with JDBC: Date class handling.
Basically databases usually support at least three forms of datetime fields which are date, time and timestamp. Each of these have a corresponding class in JDBC and ea...