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Regular expression for floating point numbers
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Validate phone number with JavaScript
...fectly. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
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Index all *except* one item in python
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For a list, you could use a list comp. For example, to make b a copy of a without the 3rd ele...
Difference between numpy.array shape (R, 1) and (R,)
In numpy , some of the operations return in shape (R, 1) but some return (R,) . This will make matrix multiplication more tedious since explicit reshape is required. For example, given a matrix M , if we want to do numpy.dot(M[:,0], numpy.ones((1, R))) where R is the number of rows (of co...
How to convert floats to human-readable fractions?
Let's say we have 0.33 , we need to output 1/3 .
If we have 0.4 , we need to output 2/5 .
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RegEx to parse or validate Base64 data
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From the RFC 4648:
Base encoding of data is used in many situations to store or transfer d...
How to fix the uninitialized constant Rake::DSL problem on Heroku?
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answered Jun 7 '11 at 9:31
KaleKale
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Python and pip, list all versions of a package that's available?
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Syntax for creating a two-dimensional array
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