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Concatenate strings in Less
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Thanks for the answer! This is perfect. Now I can make sure that even if the context path changes, there won't be a refactoring nightmare.
– juminoz
Apr 21 '12 at 18:16
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Entity framework code-first null foreign key
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I have the same problem now ,
I have foreign key and i need put it as nullable,
to solve this problem you should put
modelBuilder.Entity<Country>()
.HasMany(c => c.Users)
.WithOptional(c => c.Country)
.HasFo...
python pandas remove duplicate columns
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It sounds like you already know the unique column names. If that's the case, then df = df['Time', 'Time Relative', 'N2'] would work.
If not, your solution should work:
In [101]: vals = np.random.randint(0,20, (4,3))
vals
Out[101]:
array([[ 3...
Skip first entry in for loop in python?
...:
# do work on 'prev' not 'car'
# at end of loop:
prev = car
# now you can do whatever you want to do to the last one on 'prev'
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Publish to S3 using Git?
Does anyone know how to do this? So far I haven't been able to find anything useful via Google.
8 Answers
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What is Gradle in Android Studio?
...using Eclipse for your development purposes, and, chances are, you didn't know how to build your Android APK without Eclipse.
You can do this on the command line, but you have to learn what each tool (dx, aapt) does in the SDK.
Eclipse saved us all from these low level but important, fundamental de...
Same Navigation Drawer in different Activities
...ike it's shown in the tutorial on the developer.android.com website. But now, I want to use one Navigation Drawer, i created in the NavigationDrawer.class for multiple Activities in my Application.
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How to properly assert that an exception gets raised in pytest?
...nstantly evolves and with one of the nice changes in the recent past it is now possible to simultaneously test for
the exception type (strict test)
the error message (strict or loose check using a regular expression)
Two examples from the documentation:
with pytest.raises(ValueError, match='mu...
Create dynamic URLs in Flask with url_for()
...ex')
@app.route('/')
def index():
return 'you are in the index page'
Now if you have a link the index page:you can use this:
<a href={{ url_for('index') }}>Index</a>
You can do a lot o stuff with it, for example:
@app.route('/questions/<int:question_id>'): #int has bee...
Find kth smallest element in a binary search tree in Optimum way
... subtree, to decide whether to do recurse into the left or right subtree.
Now, suppose we are at node T:
If k == num_elements(left subtree of T), then the answer we're looking for is the value in node T.
If k > num_elements(left subtree of T), then obviously we can ignore the left subtree, bec...