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How to close current tab in a browser window?
I want to create a link on a webpage that would close the currently active tab in a browser without closing other tabs in the browser. When the user clicks the close link, an alert message should appear asking the user to confirm with two buttons, "YES" and "NO". If the user clicks "YES", close th...
Build unsigned APK file with Android Studio
I'm developing an android app with the Android Developer Tool.
Now I tried the new Android Studio, everything works fine if connect my smartphone with the pc and directly run the program in the Android Studio.
But now I want to test the program with other smartphones without connecting them to my pc...
URL Encoding using C#
I have an application which sends a POST request to the VB forum software and logs someone in (without setting cookies or anything).
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What is the purpose of .PHONY in a Makefile?
...at does .PHONY mean in a Makefile? I have gone through this , but it is too complicated.
9 Answers
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Passing a String by Reference in Java?
I am used to doing the following in C :
15 Answers
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What does “atomic” mean in programming?
...Suppose foo is a variable of type long. The following operation is not an atomic operation:
foo = 65465498L;
Indeed, the variable is written using two separate operations: one that writes the first 32 bits, and a second one which writes the last 32 bits. That means that another thread might read ...
Window appears off screen on ubuntu [closed]
I have a dual monitor setup, and I am using Ubuntu 12.04 LTS
I have changed the positioning of the monitors several times, and now for some reason some of the windows open up off-screen (outside of both screens), Update Manager, for instance.
How can I position the windows on one of my screens?
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Check if multiple strings exist in another string
... "wholesome", "milk"]
if any(x in a_string for x in matches):
Similarly to check if all the strings from the list are found, use all instead of any.
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What is the difference between a User Control Library and a Custom Control Library?
I am just coming up to speed on WPF and would like to create a reusable WPF control.
2 Answers
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Why do I get AttributeError: 'NoneType' object has no attribute 'something'?
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You have a variable that is equal to None and you're attempting to access an attribute of it called 'something'.
foo = None
foo.something = 1
or
foo = None
print(foo.something)
Both will yield an AttributeError: 'NoneType'
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