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Is it worth using Python's re.compile?

... dF.dF. 64.2k2727 gold badges123123 silver badges134134 bronze badges 5 ...
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Load dimension value from res/values/dimension.xml from source code

...call context.dp(R.dimen. tutorial_cross_marginTop) to get the Float value fun Context.px(@DimenRes dimen: Int): Int = resources.getDimension(dimen).toInt() fun Context.dp(@DimenRes dimen: Int): Float = px(dimen) / resources.displayMetrics.density If you want to handle it without context, you can...
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data.table vs dplyr: can one do something well the other can't or does poorly?

...ansparency. Updating a data.table object by reference, especially within a function may not be always desirable. But this is an incredibly useful feature: see this and this posts for interesting cases. And we want to keep it. Therefore we are working towards exporting shallow() function in data.tab...
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What is the difference between self::$bar and static::$bar in PHP?

...which may not be what you intend: class Foo { protected static $bar = 1234; } class Bar extends Foo { protected static $bar = 4321; } When you call a method via static, you're invoking a feature called late static bindings (introduced in PHP 5.3). In the above scenario, using self will ...
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What exactly is RESTful programming?

...hn&lname=Doe&age=25 The server responds: 200 OK Location: /user/123 In the future, you can then retrieve the user information: GET /user/123 The server responds: 200 OK <fname>John</fname><lname>Doe</lname><age>25</age> To modify the record (lna...
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Count character occurrences in a string in C++

...but I'd suggest you to use this solution instead. As you see you can use a function to encapsulate the code for you so you won't have to write out the for loop everytime, but can just use count_underscores("my_string_") in the rest of your code. Using advanced C++ algorithms is certainly possible he...
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How do I check to see if a value is an integer in MySQL?

...NED ) // will return 0 if not numeric string. for example SELECT CAST('a123' AS UNSIGNED) // returns 0 SELECT CAST('123' AS UNSIGNED) // returns 123 i.e. > 0 share | improve this answer ...
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How to make good reproducible pandas examples

...ersions of them) in the step which is causing you trouble. Anyways, have fun learning Python, NumPy and Pandas! share | improve this answer | follow | ...
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Can I convert a C# string value to an escaped string literal

... Does not work. If I have "abc\n123" (without quotes, 8 chars), I want "abc" + \n + "123" (7 chars). Instead it produces "abc" + "\\" + "\n123" (9 chars). Notice the slash was doubled and it still contains a string literal of "\n" as two characters, not t...
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What is a None value?

...ist.append(val) return list list1 = extendList(10) list2 = extendList(123,[]) list3 = extendList('a') print "list1 = %s" % list1 print "list2 = %s" % list2 print "list3 = %s" % list3 Now try to guess output of above list. Well, the answer is surprisingly as below: list1 = [10, 'a'] list2 = ...