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How to sort an array in descending order in Ruby
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It's always enlightening to do a benchmark on the various suggested answers. Here's what I found out:
#!/usr/bin/ruby
require 'benchmark'
ary = []
1000.times {
ary << {:bar => rand(1000)}
}
n = 500
Benchmark.bm(20) do |x|
x.report("sort")...
Serializing object that contains cyclic object value
I have an object (parse tree) that contains child nodes which are references to other nodes.
7 Answers
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C# Regex for Guid
...tes around each Guid value. I was thinking I could use a Regex to do this but I'm not exactly a Regex guru.
6 Answers
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Weird Integer boxing in Java
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The true line is actually guaranteed by the language specification. From section 5.1.7:
If the value p being boxed is true,
false, a byte, a char in the range
\u0000 to \u007f, or an int or short
number between -128 and 127, then let
r1 and r2 be the...
How do you create a remote Git branch?
I created a local branch which I want to 'push' upstream. There is a similar question here on Stack Overflow on how to track a newly created remote branch.
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How can I multiply and divide using only bit shifting and adding?
How can I multiply and divide using only bit shifting and adding?
14 Answers
14
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FIND_IN_SET() vs IN()
I have 2 tables in my database. One is for orders, and one is for companies.
6 Answers
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Converting strings to floats in a DataFrame
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NOTE: pd.convert_objects has now been deprecated. You should use pd.Series.astype(float) or pd.to_numeric as described in other
answers.
This is available in 0.11. Forces conversion (or set's to nan)
This will work even when astype will fa...
How do you check whether a number is divisible by another number (Python)?
I need to test whether each number from 1 to 1000 is a multiple of 3 or a multiple of 5. The way I thought I'd do this would be to divide the number by 3, and if the result is an integer then it would be a multiple of 3. Same with 5.
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Warning: Found conflicts between different versions of the same dependent assembly
...iled using .NET 3.5, some others are still .NET 2.0 projects (so far no problem).
19 Answers
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