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Use cases for the 'setdefault' dict method
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209
You could say defaultdict is useful for settings defaults before filling the dict and setdefaul...
How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]
I'm getting a datetime string in a format like "2009-05-28T16:15:00" (this is ISO 8601, I believe). One hackish option seems to be to parse the string using time.strptime and passing the first six elements of the tuple into the datetime constructor, like:
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Get name of object or class
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370
Get your object's constructor function and then inspect its name property.
myObj.constructor.na...
How to prevent sticky hover effects for buttons on touch devices
....removeChild(el);
setTimeout(function() {par.insertBefore(el, next);}, 0)
}
And then in your HTML you have:
<a href="#" ontouchend="this.onclick=fix">test</a>
share
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improve thi...
If my interface must return Task what is the best way to have a no-operation implementation?
...ask.CompletedTask to accomplish this.
Pre .net 4.6:
Using Task.FromResult(0) or Task.FromResult<object>(null) will incur less overhead than creating a Task with a no-op expression. When creating a Task with a result pre-determined, there is no scheduling overhead involved.
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Why are function pointers and data pointers incompatible in C/C++?
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answered Sep 10 '12 at 20:26
Dirk HolsoppleDirk Holsopple
8,06311 gold badge2121 silver badges3535 bronze badges
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How do I find which program is using port 80 in Windows? [duplicate]
How do I find which program is using port 80 in Windows?
6 Answers
6
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Comparing two dataframes and getting the differences
...pby(list(df.columns))
get index of unique records
>>> idx = [x[0] for x in df_gpby.groups.values() if len(x) == 1]
filter
>>> df.reindex(idx)
Date Fruit Num Color
9 2013-11-25 Orange 8.6 Orange
8 2013-11-25 Apple 22.1 Red
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How to replace an item in an array with Javascript?
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var index = items.indexOf(3452);
if (index !== -1) {
items[index] = 1010;
}
Also it is recommend you not use the constructor method to initialize your arrays. Instead, use the literal syntax:
var items = [523, 3452, 334, 31, 5346];
You can also use the ~ operator if you are into terse Jav...