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regex for zip-code
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^\d{5}(?:[-\s]\d{4})?$
^ = Start of the string.
\d{5} = Match 5 digits (for condition 1, 2, 3)
(?:…) = Grouping
[-\s] = Match a space (for condition 3) or a hyphen (for condition 2)
\d{4} = Match 4 digits (for condition 2, 3)
…? = The pattern before it is optional...
Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?
While most apple documents are very well written, I think ' Event Handling Guide for iOS ' is an exception. It's hard for me to clearly understand what's been described there.
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How to suppress Pandas Future warning ?
When I run the program, Pandas gives 'Future warning' like below every time.
3 Answers
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PHP function to generate v4 UUID
So I've been doing some digging around and I've been trying to piece together a function that generates a valid v4 UUID in PHP. This is the closest I've been able to come. My knowledge in hex, decimal, binary, PHP's bitwise operators and the like is nearly non existant. This function generates a val...
warning: refname 'HEAD' is ambiguous
...m new to Git and I seem to have one branch too many if I execute the following command:
5 Answers
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Converting Go struct to JSON
I am trying to convert a Go struct to JSON using the json package but all I get is {} . I am certain it is something totally obvious but I don't see it.
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How to deserialize a list using GSON or another JSON library in Java?
I can serialize a List<Video> in my servlet on GAE, but I can't deserialize it. What am I doing wrong?
4 Answers
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How to get the index of a maximum element in a numpy array along one axis
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this works fine for integers but what can I do for float values and the numbers between 0 and 1
– Priyom saha
Feb 23 '19 at 8:26
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c# open file with default application and parameters
... the file to be opened with the default application, I mean without specifying Acrobat or Reader, you can't open the file in the specified page.
On the other hand, if you are Ok with specifying Acrobat or Reader, keep reading:
You can do it without telling the full Acrobat path, like this:
Proc...
HashMap with multiple values under the same key
...t;KeyType, List<ValueType>>.
Create a new wrapper class and place instances of this wrapper in the map. Map<KeyType, WrapperType>.
Use a tuple like class (saves creating lots of wrappers). Map<KeyType, Tuple<Value1Type, Value2Type>>.
Use mulitple maps side-by-side.
Exa...