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check if variable is dataframe
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195
Use isinstance, nothing else:
if isinstance(x, pd.DataFrame):
... # do something
PEP8...
Ruby regular expression using variable name
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184
The code you think doesn't work, does:
var = "Value"
str = "a test Value"
p str.gsub( /#{var}...
Does JavaScript have “Short-circuit” evaluation?
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120
Yes, JavaScript has "short-circuit" evaluation.
if (true == true || foo.foo){
// Passes, ...
How to optimize imports automatically after each save in IntelliJ IDEA
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137
IntelliJ IDEA offers an option to Optimize imports on the fly in Settings | Editor | General |...
Easiest way to read from a URL into a string in .NET
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1 Answer
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Active
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COUNT DISTINCT with CONDITIONS
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261
You can try this:
select
count(distinct tag) as tag_count,
count(distinct (case when entryI...
What is WEB-INF used for in a Java EE web application?
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218
The Servlet 2.4 specification says this about WEB-INF (page 70):
A special directory exists...
Why use strong named assemblies?
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edited Jun 10 at 14:18
Jan Nils Ferner
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What is “Power Save Mode” in IntelliJ IDEA and other Jetbrains IDEs?
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edited May 22 '13 at 11:21
answered Jul 30 '12 at 16:29
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Pragma in define macro
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116
If you're using c99 or c++0x there is the pragma operator, used as
_Pragma("argument")
whic...