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Differences between “java -cp” and “java -jar”?
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answered Aug 12 '12 at 13:59
Andreas DolkAndreas Dolk
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How do I iterate over a range of numbers defined by variables in Bash?
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1838
for i in $(seq 1 $END); do echo $i; done
edit: I prefer seq over the other methods because I c...
How to check if a given directory exists in Ruby
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Totor
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answered Jul 6 '09 at 3:12
EmilyEmily
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Difference between single and double quotes in Bash
... echo '$(echo "upg")'
$(echo "upg")
The Bash manual has this to say:
3.1.2.2 Single Quotes
Enclosing characters in single quotes (') preserves the literal value of each character within the quotes. A single quote may not occur between single quotes, even when preceded by a backslash.
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Is there an expression for an infinite generator?
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134
for x in iter(int, 1): pass
Two-argument iter = zero-argument callable + sentinel value
int(...
bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: lxml. Do you need
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13 Answers
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How can you represent inheritance in a database?
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@Bill Karwin describes three inheritance models in his SQL Antipatterns book, when proposing sol...
Having links relative to root?
...t was necessary for to use a specific base, for this I'll simply cite the W3's example:
For example, given the following BASE declaration and A declaration:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<HTML>
<HEAD>
<TIT...
How to remove duplicate values from an array in PHP
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Use array_unique().
Example:
$array = array(1, 2, 2, 3);
$array = array_unique($array); // Array is now (1, 2, 3)
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Error when testing on iOS simulator: Couldn't register with the bootstrap server
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