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Should JAVA_HOME point to JDK or JRE?
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122
If you're doing any sort of development, or building with Maven or Ant, you need to point to th...
Read input from console in Ruby?
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230
Are you talking about gets?
puts "Enter A"
a = gets.chomp
puts "Enter B"
b = gets.chomp
c = a...
URL query parameters to dict python
...b import parse
>>> url = "http://www.example.org/default.html?ct=32&op=92&item=98"
>>> parse.urlsplit(url)
SplitResult(scheme='http', netloc='www.example.org', path='/default.html', query='ct=32&op=92&item=98', fragment='')
>>> parse.parse_qs(parse.urlsplit...
What is the Bash equivalent of Python's pass statement
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2 Answers
2
Active
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PostgreSQL disable more output
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251
To disable pagination but retain the output, use:
\pset pager off
To remember this setting,...
Boolean operators && and ||
...rter ones are vectorized, meaning they can return a vector, like this:
((-2:2) >= 0) & ((-2:2) <= 0)
# [1] FALSE FALSE TRUE FALSE FALSE
The longer form evaluates left to right examining only the first element of each vector, so the above gives
((-2:2) >= 0) && ((-2:2) <...
Where is the warnings screen option in Android Studio?
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275
If, on the toolbar, you click Analyze -> Inspect Code; then in the window that pops up sele...
Java regular expression OR operator
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You can just use the pipe on its own:
"string1|string2"
for example:
String s = "string1, string2, string3";
System.out.println(s.replaceAll("string1|string2", "blah"));
Output:
blah, blah, string3
The main reason to use parentheses is to limit the scope of the alternat...
How do I import the Django DoesNotExist exception?
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edited Jun 21 '14 at 6:27
Éric Araujo
6,21611 gold badge2121 silver badges3737 bronze badges
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Ruby on Rails form_for select field with class
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edited Mar 6 '13 at 2:14
Rimian
31.1k1010 gold badges102102 silver badges107107 bronze badges
answ...