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How do you return the column names of a table?
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edited Dec 16 '15 at 11:03
Nithin Mohan
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What's the difference between => , ()=>, and Unit=>
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def f(x: => Int) = x * x
If I call it like this
var y = 0
f { y += 1; y }
Then the code will execute like this
{ y += 1; y } * { y += 1; y }
Though that raises the point of what happens if there's a identifier name clash. In traditional call-by-name, a mechanism called capture-avoiding ...
Android static object lifecycle
...ic variable, it will remain in the JVM until one of the following happens:
1. the class is unloaded
2. the JVM shuts down
3. the process dies
Note that the value of the static variable will persist when you switch to a different activity of another application and none of the above three happens....
Convert Python dictionary to JSON array
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168
If you are fine with non-printable symbols in your json, then add ensure_ascii=False to dumps ...
Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
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Centering a view in its superview using Visual Format Language
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14 Answers
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$.ajax - dataType
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183
contentType is the HTTP header sent to the server, specifying a particular format.
Example: I...
Convert number strings with commas in pandas DataFrame to float
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136
If you're reading in from csv then you can use the thousands arg:
df.read_csv('foo.tsv', sep=...
What is the difference between atomic and critical in OpenMP?
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175
The effect on g_qCount is the same, but what's done is different.
An OpenMP critical section ...
PHP: How to check if image file exists?
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130
You need the filename in quotation marks at least (as string):
if (file_exists('http://www.my...