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Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
It seems to me like the files run the same without that line.
21 Answers
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Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
I need to check a JavaScript array to see if there are any duplicate values. What's the easiest way to do this? I just need to find what the duplicated values are - I don't actually need their indexes or how many times they are duplicated.
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What exactly does Perl's “bless” do?
I understand one uses the "bless" keyword in Perl inside a class's "new" method:
8 Answers
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Rotating and spacing axis labels in ggplot2
...90)) +
NULL
From the documentation of the angle argument:
Compared to setting the angle in theme() / element_text(), this also
uses some heuristics to automatically pick the hjust and vjust that
you probably want.
Alternatively, it also provides guide_axis(n.dodge = 2) (as guide argument to ...
Python, remove all non-alphabet chars from string
...b3d*E')
#Out: 'abdE'
Alternatively, if you only want to remove a certain set of characters (as an apostrophe might be okay in your input...)
regex = re.compile('[,\.!?]') #etc.
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How can I plot with 2 different y-axes?
I would like superimpose two scatter plots in R so that each set of points has its own (different) y-axis (i.e., in positions 2 and 4 on the figure) but the points appear superimposed on the same figure.
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Django set field value after a form is initialized
I am trying to set the field to a certain value after the form is initialized.
9 Answers
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Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
...te 3:
This warning can also be triggered by labels that have numberOfLines set to anything but 1 if your deployment target is set to 7.1. This is completely reproducible with new single-view project.
Steps to Reproduce:
Create a new single-view, objective-c project
Set the Deployment Target to 7...
Get the current time in C
I want to get the current time of my system. For that I'm using the following code in C:
9 Answers
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How to auto-remove trailing whitespace in Eclipse?
...t edited lines.
Note it is not necessary to click Configure the formatter settings on the Formatter page - all the code styles automatically include removing trailing whitespace. At least I couldn't find a setting for this in Formatter configuration, and it worked out of the box for built-in Java C...