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Ruby class types and case statements
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You must use:
case item
when MyClass
...
I had the same problem:
How to catch Errno::ECONNRESET class in "case when"?
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Are table names in MySQL case sensitive?
Are table names in MySQL case sensitive?
5 Answers
5
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ASP.NET WebApi unit testing with Request.CreateResponse
...r my ApiController and faced some issues. There is a nice extension method called Request.CreateResponse that helps a lot with generating response.
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How do i put a border on my grid in WPF?
...y fill your control is that, by default, it's HorizontalAlignment and VerticalAlignment are set to Stretch. Try the following:
<Grid>
<Border HorizontalAlignment="Left" VerticalAlignment="Top" BorderBrush="Black" BorderThickness="2">
<Grid Height="166" HorizontalAlignm...
Rails :dependent => :destroy VS :dependent => :delete_all
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The difference is with the callback.
The :delete_all is made directly in your application and deletes by SQL :
DELETE * FROM users where compagny_id = XXXX
With the :destroy, there is an instantiation of all of your children. So, if you can't destr...
How to get an array of specific “key” in multidimensional array without looping
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Since php 5.5, you can use array_column:
$ids = array_column($users, 'id');
This is the preferred option on any modern project. However, if you must support php > 5.5, the following alternatives exist:
Since php 5.3, you can use array_ma...
R programming: How do I get Euler's number?
...ession
exp(1)
represents e, and
exp(2)
represents e^2.
This works because exp is the exponentiation function with base e.
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git branch -d gives warning
...t to get a better understanding of the warning message after I deleted a local branch
4 Answers
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Skip rows during csv import pandas
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You can try yourself:
>>> import pandas as pd
>>> from StringIO import StringIO
>>> s = """1, 2
... 3, 4
... 5, 6"""
>>> pd.read_csv(StringIO(s), skiprows=[1], header=None)
0 1
0 1 2
1 ...
How to convert list of tuples to multiple lists?
...4, 6)]
The only difference is that you get tuples instead of lists. You can convert them to lists using
map(list, zip(*[(1, 2), (3, 4), (5, 6)]))
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