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Remove unwanted parts from strings in a column
I am looking for an efficient way to remove unwanted parts from strings in a DataFrame column.
9 Answers
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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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How to use Servlets and Ajax?
... these days, I'll use it in the below examples.
Kickoff example returning String as plain text
Create a /some.jsp like below (note: the code doesn't expect the JSP file being placed in a subfolder, if you do so, alter servlet URL accordingly):
<!DOCTYPE html>
<html lang="en">
<...
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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Only using @JsonIgnore during serialization, but not deserialization
...also do something like:
@JsonProperty(access = Access.WRITE_ONLY)
private String password;
Docs can be found here.
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Using build types in Gradle to run same app that uses ContentProvider on one device
...at can be used wherever needed in your implementation:
public static final String AUTHORITY = BuildConfig.APPLICATION_ID + ".provider";
Tip: Before it was BuildConfig.PACKAGE_NAME
That's it! It will work like a charm. Keep reading if you use SyncAdapter!
Update for SyncAdapter (14.11.2014)
Once ag...
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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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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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...
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...