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How to get Maven project version to the bash command line
... the ${project.version}:
mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate \
-Dexpression=project.version
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Python data structure sort list alphabetically
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241
[] denotes a list, () denotes a tuple and {} denotes a dictionary. You should take a look at the...
Rollback a Git merge
... feeling the moxy (and haven't done anything else): git reset --hard HEAD@{1}
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iPhone: How to get current milliseconds?
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18 Answers
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Batch file include external file for variables
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133
Note: I'm assuming Windows batch files as most people seem to be unaware that there are signif...
Best way to represent a fraction in Java?
...arable<BigFraction>
{
private static final long serialVersionUID = 1L; //because Number is Serializable
private final BigInteger numerator;
private final BigInteger denominator;
public final static BigFraction ZERO = new BigFraction(BigInteger.ZERO, BigInteger.ONE, true);
public fin...
How to map and remove nil values in Ruby
... and I'd expect it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your case, as the block evaluates to falsey, simply:
items.filter_map { |x| process_x url }
"Ruby 2.7 adds Enumerable#filter_map" is a g...
Consistency of hashCode() on a Java string
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102
I can see that documentation as far back as Java 1.2.
While it's true that in general you sho...
What is the correct syntax for 'else if'?
I'm a new Python programmer who is making the leap from 2.6.4 to 3.1.1. Everything has gone fine until I tried to use the 'else if' statement. The interpreter gives me a syntax error after the 'if' in 'else if' for a reason I can't seem to figure out.
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