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What is the fastest method for selecting descendant elements in jQuery?
...sed and translate it to a call to $parent.find(".child").show();.
Method 4 and Method 5 both need to parse the selector and then just call: $('#parent').children().filter('.child') and $('#parent').filter('.child') respectively.
So method 3 will always be the fastest because it needs to do the le...
Reading a delimited string into an array in Bash
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edited Aug 17 '18 at 14:44
B--rian
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Equal sized table cells to fill the entire width of the containing table
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You don't even have to set a specific width for the cells, table-layout: fixed suffices to spre...
NameError: name 'reduce' is not defined in Python
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@julio.alegria: Because Guido hates it.
– Ignacio Vazquez-Abrams
Dec 31 '11 at 16:55
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LISTAGG in Oracle to return distinct values
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Creating a new column based on if-elif-else condition
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4 Answers
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Pandas aggregate count distinct
...about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id": pd.Ser...
Move an item inside a list?
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How to move multiple elements? Given a list a = [1,2,3,4,5,6,7,8,9], how to transform it to [1,2,[3,4,5],6,7,8,9]? Can this be done in one step or with a list comprehension?
– g33kz0r
Feb 21 '13 at 19:04
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Why does direction of index matter in MongoDB?
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MongoDB concatenates the compound key in some way and uses it as the key in a BTree.
When findi...
How to get a substring of text?
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246
If you have your text in your_text variable, you can use:
your_text[0..29]
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