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Does Python have a string 'contains' substring method?
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>>> 'foo' not in '**foo**' # returns False
False
This is semantically the same as not 'foo' in '**foo**' but it's much more readable and explicitly provided for in the language as a readability improvement.
Avoid using __contains__
The "contains" method implements the behavior for in. Thi...
Parse (split) a string in C++ using string delimiter (standard C++)
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You are returning vector<string> I think it'll call copy constructor.
– Mayur
Nov 27 '18 at 8:21
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UIGestureRecognizer on UIImageView
...w of the view controllers view
}
Here are the three methods that will be called when the gestures on your view are detected. Inside them, we will check the current state of the gesture, and if it is in either the began or changed UIGestureRecognizerState we will read the gesture's scale/rotation/t...
Returning IEnumerable vs. IQueryable
...ention expression trees which explain "how" the two interfaces differ. Basically, there are two identical sets of LINQ extensions. Where(), Sum(), Count(), FirstOrDefault(), etc all have two versions: one that accepts functions and one that accepts expressions.
The IEnumerable version signature is...
Android: What is better - multiple activities or switching views manually?
... in my android tabs project, also you might want to take a look at a class called ActivityGroup (not sure the package) it allows you to have multiple activities that you can switch between, good thing about this class is that your activities are not unloaded when you switch but a bad thing is it tak...
How do I check if an object has a key in JavaScript? [duplicate]
... in that case the workaround is as below:
Object.prototype.hasOwnProperty.call(myObj, 'myKey');
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How to get the concrete class name as a string? [duplicate]
I want to avoid calling a lot of isinstance() functions, so I'm looking for a way to get the concrete class name for an instance variable as a string.
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What resources exist for Database performance-tuning? [closed]
...with links for mysql/oracle docs, not really an optimization guides specifically but both are good resources, especially the mysql one. For optimization and any other tuning features.
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Redirecting passed arguments to a windows batch file [duplicate]
I would like to call a jar file from a windows batch file. One requirement is to be able to pass all the batch file arguments as-is to the jar file invocation. For example,
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get string value from UISegmentedControl
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wondering why is this call giving me extra argument 'at' in call error in swift 3 with Xcode 8.3
– Umair
Jun 6 '17 at 12:46
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