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How do I remove/delete a virtualenv?
...rtual environment. Simply deactivate it and rid your application of its artifacts by recursively removing it.
Note that this is the same regardless of what kind of virtual environment you are using. virtualenv, venv, Anaconda environment, pyenv, pipenv are all based the same principle here.
...
Fragment lifecycle - which method is called upon show / hide?
...
Similar to activity lifecycle, Android calls onStart() when fragment becomes visible. onStop() is normally called when fragment becomes invisible, but it can also be called later in time.
Depending on your layout Android can call onStart() even,...
How to round to 2 decimals with Python?
...
note: this changes the value of answer. If you simply want to round for display, go with the answer of @Johnsyweb - stackoverflow.com/a/20457284/1498405
– hardmooth
Mar 28 '18 at 7:35
...
Call an activity method from a fragment
...ctivity to fragment:
FragmentManager fm = getSupportFragmentManager();
//if you added fragment via layout xml
YourFragmentClass fragment = (YourFragmentClass)fm.findFragmentById(R.id.your_fragment_id);
fragment.yourPublicMethod();
If you added fragment via code and used a tag string when you add...
Read error response body in Java
...LConnection httpConn = (HttpURLConnection)_urlConnection;
InputStream _is;
if (httpConn.getResponseCode() < HttpURLConnection.HTTP_BAD_REQUEST) {
_is = httpConn.getInputStream();
} else {
/* error from server */
_is = httpConn.getErrorStream();
}
...
How can I return an empty IEnumerable?
...wing code and the suggestions given in this question , I've decided to modify this original method and ask if there are any values in the IEnumarable return it, if not return an IEnumerable with no values.
...
Is there a foreach loop in Go?
...e we are
// element is the element from someSlice for where we are
}
If you don't care about the index, you can use _:
for _, element := range someSlice {
// element is the element from someSlice for where we are
}
The underscore, _, is the blank identifier, an anonymous placeholder.
...
jQuery - Add ID instead of Class
...iting the id of three elements and adding an id to one element.
You can modify as per you needs...
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Sorting arraylist in alphabetical order (case insensitive)
...s1, String s2) {
return s1.compareToIgnoreCase(s2);
}
});
Or if you are using Java 8:
list.sort(String::compareToIgnoreCase);
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Max return value if empty query
... .Select(x => x.ShoeSize)
.DefaultIfEmpty(0)
.Max();
The zero in DefaultIfEmpty is not necessary.
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