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What is the apply function in Scala?

...ed as a reference to Function1[Int,Int] object. For example, we can call toString method inherited from Any, that would have been impossible for a pure function, because functions don't have methods: f.toString Or we could define another Function1[Int,Int] object by calling compose method on f...
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How do I center text horizontally and vertically in a TextView?

...out_height="match_parent" android:gravity="center" android:text="@string/**yourtextstring**" /> You can also use gravity center_vertical or center_horizontal according to your need. and as @stealthcopter commented in java: .setGravity(Gravity.CENTER); ...
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How to decompile an APK or DEX file on Android platform? [closed]

... DecompileAndroid unfortunately doesn't decompile strings.xml correctly – goRGon Feb 5 '15 at 19:50 ...
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How can I output UTF-8 from Perl?

... FWIW here is the reason: strings that contains only latin1 (ISO-8859-1) characters, despite being stored more or less in utf8, will be output as latin1 by default. This way scripts from a pre-unicode era still work the same, even with a unicode-aware...
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Create Django model or update if exists

...a value that evaluates to True (i.e., a value other than None or the empty string), Django executes an UPDATE. If the object’s primary key attribute is not set or if the UPDATE didn’t update anything, Django executes an INSERT. It's worth noting that when they say 'if the UPDATE didn't update a...
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Is returning by rvalue reference more efficient?

...p;b) { return std::move(a < b? a: b); } int main() { const std::string s = min_(std::string("A"), std::string("B")); fprintf(stderr, "min: %s\n", s.c_str()); return 0; } As an interesting observation, on my machine clang++ -O3 generates 54 instructions for code above versus 62 ins...
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GSON - Date format

...t seems that you need to define formats for both date and time part or use String-based formatting. For example: Gson gson = new GsonBuilder() .setDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz").create(); or using java.text.DateFormat Gson gson = new GsonBuilder() .setDateFormat(DateFormat.FUL...
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How to impose maxlength on textArea in HTML using JavaScript

...er what the deal is: either FF or IE (I think it's FF) returns a different string when Javascript checks the "value" attribute than what it sends back to the server when the form is posted! It has something to do with how hard line breaks do/don't get a carriage return character inserted. It's easy ...
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How to elegantly deal with timezones

...ly update itself. The only thing that they stored were the datetime format string for the locale of the user. I'm not saying it was the best approach, but it was a different one that I had not seen before. Maybe you'll glean some interesting ideas from it. ...
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How to override the copy/deepcopy operations for a Python object?

...nd its copy. obj is some object shared_attribute_names: A list of strings identifying the attributes that should be shared between the original and its copy. memo is the dictionary passed into __deepcopy__. Ignore this argument if not calling from within __deepcopy__. ...