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Reserved keywords in JavaScript
...ng that info. I found that PDF in google, but didn't have time to open and read it all.
– benc
Oct 3 '08 at 17:10
The ...
Simple regular expression for a decimal with a precision of 2
... they are certainly valid for a more generic number format. The comments thread here gives a few ways to handle ".21".
– DocMax
Jul 21 '17 at 16:06
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Change select box option background color
...ess the problem of how form elements should be presented to users period!
Read here: smashing magazine
Eventually, you will never find any technical article from w3c or other addressed to this topic. Styling form elements in particular select boxes is not fully supported however, you can drive aro...
How to remove the left part of a string?
...om ConfigParser import SafeConfigParser
config = SafeConfigParser()
config.read(filename) # requires section headers to be present
path = config.get(section, 'path', raw=1) # case-insensitive, no interpolation
Other options
str.split()
re.match()
...
Replacing blank values (white space) with NaN in pandas
...xporting the data from the CSV file it can be as simple as this :
df = pd.read_csv(file_csv, na_values=' ')
This will create the data frame as well as replace blank values as Na
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scipy.misc module has no attribute imread?
I am trying to read an image with scipy. However it does not accept the scipy.misc.imread part. What could be the cause of this?
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echo that outputs to stderr
...
You could do this, which facilitates reading:
>&2 echo "error"
>&2 copies file descriptor #2 to file descriptor #1. Therefore, after this redirection is performed, both file descriptors will refer to the same file: the one file descriptor #2 was...
Determine which MySQL configuration file is being used
.../mysqld --verbose --help | grep -A 1 "Default options"
Default options are read from the following files in the given order:
/etc/mysql/my.cnf ~/.my.cnf /usr/etc/my.cnf
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What are the differences between poll and select?
...on modern systems. Furthermore, epoll() has since been developed (you can read the man page), and continues to rise in popularity.
For modern development you probably don't want to use select(), although there's nothing explicitly wrong with it. poll(), and it's more modern evolution epoll(), pro...
Double Negation in C++
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@Noldorin, I think it improves readability - if you know what it means, it is simple, neat and logical.
– jwg
Jun 4 '14 at 9:45
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