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How to find the extension of a file in C#?
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Does not the MIME type usually get set according to the file name extension?
– Thilo
Dec 11 '09 at 9:49
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Linux/Unix command to determine if process is running?
...ps cax | grep command
The output on Gentoo Linux:
14484 ? S 0:00 apache2
14667 ? S 0:00 apache2
19620 ? Sl 0:00 apache2
21132 ? Ss 0:04 apache2
The output on OS X:
42582 ?? Z 0:00.00 (smbclient)
46529 ?? Z 0:00.00 (smbclient)
46539...
Rails: update_attribute vs update_attributes
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will they make up their minds already. reset_column, update_column deprecated also.
– ahnbizcad
Sep 15 '14 at 17:57
2
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python pandas remove duplicate columns
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409
There's a one line solution to the problem. This applies if some column names are duplicated an...
Making heatmap from pandas DataFrame
...5, 4)), index=index, columns=columns)
plt.pcolor(df)
plt.yticks(np.arange(0.5, len(df.index), 1), df.index)
plt.xticks(np.arange(0.5, len(df.columns), 1), df.columns)
plt.show()
This gives:
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Get URL query string parameters
...ing for exploits. That's why this feature is highly discouraged. You can set PHP to do this automatically, without calling parse_str, but naturally, it's considered a no-no.
– Zenexer
Aug 4 '13 at 5:16
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Javascript regex returning true.. then false.. then true.. etc [duplicate]
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/^[^-_]([a-z0-9-_]{4,20})[^-_]$/gi;
You're using a g (global) RegExp. In JavaScript, global regexen have state: you call them (with exec, test etc.) the first time, you get the first match in a given string. Call them again and you get...
What is the difference between & and && in Java?
...the first operand evaluates to false since the result will be false
(x != 0) & (1/x > 1) <-- this means evaluate (x != 0) then evaluate (1/x > 1) then do the &. the problem is that for x=0 this will throw an exception.
(x != 0) && (1/x > 1) <-- this means evaluate (x...
NumPy or Pandas: Keeping array type as integer while having a NaN value
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This capability has been added to pandas (beginning with version 0.24):
https://pandas.pydata.org/pandas-docs/version/0.24/whatsnew/v0.24.0.html#optional-integer-na-support
At this point, it requires the use of extension dtype Int64 (capitalized), rather than the default dtype int64 (lowe...
jQuery, simple polling example
...l', function(data) {
alert(data); // process results here
setTimeout(doPoll,5000);
});
}
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