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Display a float with two decimal places in Python
...decimals with one significant digit), and I need to output the values in a string with two decimal places (5 -> 5.00, 5.5 -> 5.50, etc). How can I do this in Python?
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Question mark and colon in JavaScript
...want TRUE / FALSE: If 'expression' was just some variable with a number or string in it, "var x = !!expression" will make it into a boolean result.
– Scott Lahteine
Jan 4 '12 at 23:15
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How do I parse an ISO 8601-formatted date?
I need to parse RFC 3339 strings like "2008-09-03T20:56:35.450686Z" into Python's datetime type.
27 Answers
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Greedy vs. Reluctant vs. Possessive Quantifiers
...quantifier first matches as much as possible. So the .* matches the entire string. Then the matcher tries to match the f following, but there are no characters left. So it "backtracks", making the greedy quantifier match one less character (leaving the "o" at the end of the string unmatched). That s...
Is it possible to “await yield return DoSomethingAsync()”
...perations into a single Task which can be awaited.
Task<IEnumerable<string>> DownLoadAllUrls(string[] urls)
{
return Task.WhenAll(from url in urls select DownloadHtmlAsync(url));
}
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StringIO in Python3
I am using Python 3.2.1 and I can't import the StringIO module. I use
io.StringIO and it works, but I can't use it with numpy 's genfromtxt like this:
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Remove file extension from a file name string
If I have a string saying "abc.txt" , is there a quick way to get a substring that is just "abc" ?
12 Answers
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How to parse date string to Date? [duplicate]
How do I parse the date string below into a Date object?
6 Answers
6
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Make an HTTP request with android
...yteArrayOutputStream();
response.getEntity().writeTo(out);
String responseString = out.toString();
out.close();
//..more logic
} else{
//Closes the connection.
response.getEntity().getContent().close();
throw new IOException(statusLine.getR...
How do I prevent the modification of a private field in a class?
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You must return a copy of your array.
public String[] getArr() {
return arr == null ? null : Arrays.copyOf(arr, arr.length);
}
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