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Python Pandas merge only certain columns
...e to only merge some columns? I have a DataFrame df1 with columns x, y, z, and df2 with columns x, a ,b, c, d, e, f, etc.
5...
What is Linux’s native GUI API?
Both Windows (Win32 API) and OS X (Cocoa) have their own APIs to handle windows, events and other OS stuff. I have never really got a clear answer as to what Linux’s equivalent is?
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Can you do greater than comparison on a date in a Rails 3 search?
... also convert everything into the SQL notation
Note.
where("user_id = ? AND notetype = ? AND date > ?", current_user.id, p[:note_type], p[:date]).
order('date ASC, created_at ASC')
share
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How to set 'auto' for upper limit, but keep a fixed lower limit with matplotlib.pyplot
...t to keep the lower limit of the y-axis to always be zero. I tried 'auto' and 'autorange', but those don't seem to work. Thank you in advance.
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Pass a parameter to a fixture function
...ter.
For validating purpose I need to log some test data during the tests and do more processing afterwards. As I have many test_... files I want to reuse the tester object creation (instance of MyTester) for most of my tests.
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In R, how to get an object's name after it is sent to a function?
...ion when a set of list items are passed from the first argument to lapply (and it also fails when an object is passed from a list given to a for-loop.) You would be able to extract the ".Names"-attribute and the order of processing from the structure result, if it were a named vector that were being...
How do I vertically center text with CSS? [duplicate]
I have a <div> element which contains text and I want to align the contents of this <div> vertically center.
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Convert java.util.Date to java.time.LocalDate
...mDefault());
A ZonedDateTime contains state consisting of the local date and time, time-zone and the offset from GMT/UTC. As such the date - LocalDate - can be easily extracted using toLocalDate():
Date input = new Date();
Instant instant = input.toInstant();
ZonedDateTime zdt = instant.atZone(Zo...
What is the JavaScript version of sleep()?
...esolve or reject).
Compatibility
promises are supported in Node v0.12+ and widely supported in browsers, except IE
async/await landed in V8 and has been enabled by default since Chrome 55 (released in Dec 2016)
it landed in Node 7 in October 2016
and also landed in Firefox Nightly in November ...
Is it possible to use getters/setters in interface definition?
...ecify the property on the interface, but you can't enforce whether getters and setters are used, like this:
interface IExample {
Name: string;
}
class Example implements IExample {
private _name: string = "Bob";
public get Name() {
return this._name;
}
public set Name...