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What is the difference between “git branch” and “git checkout -b”?
I used git checkout -b to create a new branch. I think that git branch does the same thing.
How do these two commands differ, if they differ at all?
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What is the easiest way to remove the first character from a string?
...t;> "12,23,987,43"
I'm always looking for the fastest and most readable way of doing things:
require 'benchmark'
N = 1_000_000
puts RUBY_VERSION
STR = "[12,23,987,43"
Benchmark.bm(7) do |b|
b.report('[0]') { N.times { "[12,23,987,43"[0] = '' } }
b.report('sub') { N.times { "[12,23,98...
Is there a difference between “==” and “is”?
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is will return True if two variables point to the same object, == if the objects referred to by the variables are equal.
>>> a = [1, 2, 3]
>>> b = a
>>> b is a
True
>>> b == a
True
# Make a new copy of list `a` via the...
Access object child properties using a dot notation string [duplicate]
I'm temporarily stuck with what appears to be a very simple JavaScript problem, but maybe I'm just missing the right search keywords!
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Renaming columns in pandas
I have a DataFrame using pandas and column labels that I need to edit to replace the original column labels.
27 Answers
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Logical operators for boolean indexing in Pandas
I'm working with boolean index in Pandas.
The question is why the statement:
3 Answers
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Can virtual functions have default parameters?
If I declare a base class (or interface class) and specify a default value for one or more of its parameters, do the derived classes have to specify the same defaults and if not, which defaults will manifest in the derived classes?
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To underscore or to not to underscore, that is the question
Are there any problems with not prefixing private fields with an underscore in C# if the binary version is going to be consumed by other framework languages? For example since C# is case-sensitive you can call a field "foo" and the public property "Foo" and it works fine.
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MySQL - Rows to Columns
I tried to search posts, but I only found solutions for SQL Server/Access. I need a solution in MySQL (5.X).
12 Answers
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Javascript How to define multiple variables on a single line?
...line, I'm getting confused how to properly define multiple JavaScript variables on a single line.
7 Answers
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