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how to stop browser back button using javascript
...the user from going back in an exam.
I have tried the following script but it stops my timer.
What should I do?
29 Answers
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Convert date to datetime in Python
...xample getting the datetime for the midnight of the given date? The opposite conversion is easy: datetime has a .date() method.
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What does $$ mean in the shell?
...his does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.)
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Is there a read-only generic dictionary available in .NET?
...mers from changing my data? If this were an IList I could simply return it AsReadOnly . Is there something similar I can do with a dictionary?
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What is a bus error?
What does the "bus error" message mean, and how does it differ from a segfault?
15 Answers
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What does @hide mean in the Android source code?
For the Activity source code , line 3898 (close to the bottom):
3 Answers
3
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What would be C++ limitations compared C language? [closed]
Following are the benefits of C++
32 Answers
32
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Why is the Windows cmd.exe limited to 80 characters wide?
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It isn't. You can right click the title bar, select properties, and in the "Layout" tab alter the screen buffer size (line width and scrollback) and the window size (viewport size). If you started cmd from a shortcut, you can...
What optimizations can GHC be expected to perform reliably?
GHC has a lot of optimizations that it can perform, but I don't know what they all are, nor how likely they are to be performed and under what circumstances.
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Accessing an array out of bounds gives no error, why?
...nter undefined behavior, anything might happen. The application may crash, it may freeze, it may eject your CD-ROM drive or make demons come out of your nose. It may format your harddrive or email all your porn to your grandmother.
It may even, if you are really unlucky, appear to work correctly.
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