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Why a function checking if a string is empty always returns true? [closed]
... string is not empty and false if the string is empty. I've found out that it is not working if I pass an empty string through it.
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Setting direction for UISwipeGestureRecognizer
I want to add simple swipe gesture recognition to my view based iPhone project. Gestures in all directions (right, down, left, up) should be recognized.
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How to add pandas data to an existing csv file?
I want to know if it is possible to use the pandas to_csv() function to add a dataframe to an existing csv file. The csv file has the same structure as the loaded data.
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What is __main__.py?
What is the __main__.py file for, what sort of code should I put into it, and when should I have one?
5 Answers
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Retrieve the maximum length of a VARCHAR column in SQL Server
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edited Oct 28 '18 at 0:48
Roy Scheffers
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iOS detect if user is on an iPad
I have an app that runs on the iPhone and iPod Touch, it can run on the Retina iPad and everything but there needs to be one adjustment. I need to detect if the current device is an iPad. What code can I use to detect if the user is using an iPad in my UIViewController and then change something ac...
Do I need all three constructors for an Android custom view?
When creating a custom view, I have noticed that many people seem to do it like this:
6 Answers
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How do you set EditText to only accept numeric values in Android?
I have an EditText in which I want only integer values to be inserted. Can somebody tell me which property I have to use?
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Understanding dict.copy() - shallow or deep?
While reading up the documentation for dict.copy() , it says that it makes a shallow copy of the dictionary. Same goes for the book I am following (Beazley's Python Reference), which says:
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string.charAt(x) or string[x]?
...ion
"Test String1"[6]
// charAt Implementation
"Test String1".charAt(6)
It used to be a bad idea to use brackets, for these reasons (Source):
This notation does not work in IE7.
The first code snippet will return
undefined in IE7. If you happen to use
the bracket notation for strings a...