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How to save as a new file and keep working on the original one in Vim?
... the open file.
– loevborg
Nov 21 '13 at 13:04
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@Ioevborg when is that not the case? I just :w f...
How do I increase the number of displayed lines of a Java stack trace dump?
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3 Answers
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How to ignore whitespace in a regular expression subject string?
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answered Jan 4 '11 at 3:06
Sam DufelSam Dufel
16.2k33 gold badges4141 silver badges4949 bronze badges
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Get all unique values in a JavaScript array (remove duplicates)
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Add default value of datetime field in SQL Server to a timestamp
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For modifying an existing column in an existing table:
ALTER TABLE YourTable ADD CONSTRAINT D...
How to validate a url in Python? (Malformed or not)
...-]{2,}\.?)|' #domain...
r'localhost|' #localhost...
r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})' # ...or ip
r'(?::\d+)?' # optional port
r'(?:/?|[/?]\S+)$', re.IGNORECASE)
print(re.match(regex, "http://www.example.com") is not None) # True
print(re.match(regex, "example.co...
How to get the root dir of the Symfony2 application?
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answered Feb 9 '12 at 17:34
Jovan PerovicJovan Perovic
18.3k55 gold badges3737 silver badges7474 bronze badges
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Execute SQLite script
I start up sqlite3 version 3.7.7, unix 11.4.2 using this command:
5 Answers
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What's the difference between a proc and a lambda in Ruby?
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An example:
p = Proc.new {|a, b| puts a**2+b**2 } # => #<Proc:0x3c7d28@(irb):1>
p.call 1, 2 # => 5
p.call 1 # => NoMethodError: undefined method `**' for nil:NilClass
p.call 1, 2, 3 # => 5
l = lambda {|a, b| puts a**2+b**2 } # => #<Proc:0x15016c@(irb):5 (lambda)>
l.ca...