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Filter rows which contain a certain string
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263
The answer to the question was already posted by the @latemail in the comments above. You can ...
Can you supply arguments to the map(&:method) syntax in Ruby?
...h will enable you to do not only this:
a = [1,3,5,7,9]
a.map(&:+.with(2))
# => [3, 5, 7, 9, 11]
But also a lot of other cool stuff, like passing multiple parameters:
arr = ["abc", "babc", "great", "fruit"]
arr.map(&:center.with(20, '*'))
# => ["********abc*********", "********babc...
Splitting a list into N parts of approximately equal length
... equal parts? For example, if the list has 7 elements and is split it into 2 parts, we want to get 3 elements in one part, and the other should have 4 elements.
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How to compare software version number using js? (only number)
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Operation on every pair of element in a list
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233
Check out product() in the itertools module. It does exactly what you describe.
import itert...
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
...ation:
MySQL
Postgres
Oracle (they just have a NUMBER datatype really)
DB2
Turns out they all use the same specification (with a few minor exceptions noted below) but support various combinations of those types (Oracle not included because it has just a NUMBER datatype, see the above link):
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What is the fastest method for selecting descendant elements in jQuery?
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Method 1 and method 2 are identical with the only difference is that method 1 needs to parse the scope passed 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 cal...
How to add title to subplots in Matplotlib?
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225
ax.title.set_text('My Plot Title') seems to work too.
fig = plt.figure()
ax1 = fig.add_subplo...
Pandas: create two new columns in a dataframe with values calculated from a pre-existing column
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2 Answers
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Java: how can I split an ArrayList in multiple small ArrayLists?
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332
You can use subList(int fromIndex, int toIndex) to get a view of a portion of the original list....