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How can I declare optional function parameters in Javascript? [duplicate]
... is declared and scoped at the function level but will be undefined if not called from outside. So no global scope assignment happens here.
– Tigraine
Jun 9 '15 at 21:19
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Return first match of Ruby regex
... answered Feb 6 '09 at 8:53
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Adding a y-axis label to secondary y-axis in matplotlib
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Update a local branch with the changes from a tracked remote branch
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Python string.replace regular expression [duplicate]
...t; string function as the second argument of re.sub. That function will be called with each matched substring, and its result will be put in the result.
– Jacek Przemieniecki
Feb 11 '19 at 14:52
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Why doesn't C++ have a garbage collector?
... and allows you to do almost anything. For this reason it doesn't automatically push many things onto you that might impact performance. Garbage collection can be easily implemented with smart pointers (objects that wrap pointers with a reference count, which auto delete themselves when the refer...
Can't find how to use HttpContent
...iagrams of libraries you reference.) docs.microsoft.com/en-us/visualstudio/ide/…
– Arin
Jul 5 '17 at 22:43
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Print commit message of a given commit in git
...=format:'%s%n%n%b'
That's "last summary" and "last message". You can provide a commit to get the summary or message of that commit. (I'm using 1.7.0.5 so don't have %B.)
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Difference between var_dump,var_export & print_r
...bugging purposes, too, but does not include the member's type. It's a good idea to use if you know the types of elements in your array, but can be misleading otherwise. print_r by default prints the result, but allows returning as string instead by using the optional $return parameter.
Array (
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JSR-303 @Valid annotation not working for list of child objects
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You need to decorate addresses member of UserAddressesForm with @Valid annotation. See section 3.1.3 and 3.5.1 of JSR 303: Bean Validation. As I explained in my answer to the question Is there a standard way to enable JSR 303 Bean Validation using annotated method, this is the real use of @Va...