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How random is JavaScript's Math.random?
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183
Given numbers between 1 and 100.
9 have 1 digit (1-9)
90 have 2 digits (10-99)
1 has 3 digi...
Numbering rows within groups in a data frame
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edited Mar 14 '17 at 22:06
Frank
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Is there a standardized method to swap two variables in Python?
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401
Python evaluates expressions from left to right. Notice that while
evaluating an assignment...
What is the proper way to test if a parameter is empty in a batch file?
...et or not. I've tried several techniques but they seem to fail whenever %1 is surrounded by quotes such as the case when %1 is "c:\some path with spaces" .
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Test for equality among all elements of a single vector
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10 Answers
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Active
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How to extract a floating number from a string [duplicate]
I have a number of strings similar to Current Level: 13.4 db. and I would like to extract just the floating point number. I say floating and not decimal as it's sometimes whole. Can RegEx do this or is there a better way?
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Optimal way to concatenate/aggregate strings
...meNumber,
NameCount
FROM Partitioned
WHERE NameNumber = 1
UNION ALL
SELECT
P.ID,
CAST(C.FullName + ', ' + P.Name AS nvarchar),
P.Name,
P.NameNumber,
P.NameCount
FROM Partitioned AS P
INNER JOIN Concatenated AS C
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Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash
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166
First, note that this behavior applies to any default value that is subsequently mutated (e.g....
Rspec: “array.should == another_array” but without concern for order
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answered Jun 5 '10 at 3:08
x1a4x1a4
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How to set HTTP headers (for cache-control)?
...es below.
Some information on the Cache-Control header is as follows
HTTP 1.1. Allowed values = PUBLIC | PRIVATE | NO-CACHE | NO-STORE.
Public - may be cached in public shared caches.
Private - may only be cached in private cache.
No-Cache - may not be cached.
No-Store - may be cached but not archi...