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Difference between wait() and sleep()
...n get spurious wakeups from wait (i.e. the thread which is waiting resumes for no apparent reason). You should always wait whilst spinning on some condition as follows:
synchronized {
while (!condition) { mon.wait(); }
}
...
NameError: global name 'xrange' is not defined in Python 3
...ing, most likely there will be more problems beyond xrange() vs. range().
For the record, what you are seeing is not a syntax error but a runtime exception instead.
If you do know what your are doing and are actively making a Python 2 codebase compatible with Python 3, you can bridge the code by...
Is it possible in SASS to inherit from a class in another file?
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I feel bad for doing this since the other answers pretty much answered this question (I just neglected to check back for a while and then forgot); but I'm accepting your answer because it is the most complete—i.e., it walks me through...
Is there anything like .NET's NotImplementedException in Java?
... think the java.lang.UnsupportedOperationException is what you are looking for.
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Telling gcc directly to link a library statically
... to link with statically. After all I'm telling gcc directly all other information about linking with libraries ( -Ldir , -llibname ).
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
In my Rails (3.2) app, I have a bunch of tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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Create a menu Bar in WPF?
I want to create a menu bar identical to the one in windows forms in my WPF application.
4 Answers
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How can I set the Sender's address in Jenkins?
...ion credentials login name which is the same as the account email address. For example sake, say this is foo@mycompany.com. How can I make jenkins always send mail from foo@mycompany.com?
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How can I make Bootstrap columns all the same height?
...Solution 4 using Bootstrap 4
Bootstrap 4 uses Flexbox so there is no need for extra CSS.
Demo
<div class="container">
<div class="row ">
<div class="col-md-4" style="background-color: red">
some content
</div>
<div class="col-md-4"...
JavaScript: empty array, [ ] evaluates to true in conditional structures. Why is this?
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