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XPath: How to select nodes which have no attributes?
...is nice, but it still finds <node class=""></node> anything we can do about it?
– Marek
Apr 14 '16 at 7:57
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How do I find a list of Homebrew's installable packages?
Recently I installed Brew . How can I retrieve a list of available brew packages to install?
3 Answers
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jQuery posting valid json in request body
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What's currently happening is since you have processData: false, it's basically sending this: ({"command":"on"}).toString() which is [object Object]...what you see in your request.
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Get Context in a Service
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As Service is already a Context itself
you can even get it through:
Context mContext = this;
OR
Context mContext = [class name].this; //[] only specify the class name
// mContext = JobServiceSchedule.this;
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How to remove part of a string before a “:” in javascript?
If I have a string Abc: Lorem ipsum sit amet , how can I use JavaScript/jQuery to remove the string before the : including the : . For example the above string will become: Lorem ipsum sit amet .
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Negation in Python
...il said in the comments), you don't have to use the subprocess module, you can simply use os.mkdir() to get the result you need, with added exception handling goodness.
Example:
blues_sounds_path = "/usr/share/sounds/blues"
if not os.path.exists(blues_sounds_path):
try:
os.mkdir(blues_...
How to override the [] operator in Python?
...erwise this will happen:
>>> myobj[5] = 1
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: MyClass instance has no attribute '__setitem__'
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Undoing a git bisect mistake
...scover that you made a mistake in specifying the status of a revision, you can save the output of this command to a file, edit it to remove the incorrect entries, and then issue the following commands to return to a corrected state:
$ git bisect reset
$ git bisect replay that-file
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How do you do natural logs (e.g. “ln()”) with numpy in Python?
Using numpy, how can I do the following:
4 Answers
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Why does “while(true)” without “Thread.sleep” cause 100% CPU usage on Linux but not on Windows?
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By default, top on Linux runs in so-called IRIX mode, while the Windows Task Manager does not. Let's say you have 4 cores:
With IRIX mode on, 1 fully utilized core is 100% and 4 cores are 400%.
With IRIX mode off, 1 fully utilized core is 25% and 4 cores are...