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Is it possible to view bytecode of Class file? [duplicate]
...ecode as an in memory description of the class file.
Javassit: the easiest one to use, allows you to do pattern matching and expression replacement.
By hand: JBE
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How do I create a class instance from a string name in ruby?
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module One
module Two
class Three
def say_hi
puts "say hi"
end
end
end
end
one = Object.const_get "One"
puts one.class # => Module
three = One::Two.const_get "Three"
puts three.class # => Cl...
Deleting lines from one file which are in another file
...atching lines
-x to match whole lines only
-f f2 to get patterns from f2
One can instead use grep -F or fgrep to match fixed strings from f2 rather than patterns (in case you want remove the lines in a "what you see if what you get" manner rather than treating the lines in f2 as regex patterns).
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How to Convert JSON object to Custom C# object?
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I prefer the one liners mentioned in other answers.. IMHO.
– RayLoveless
Oct 5 '17 at 20:04
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How can I concatenate regex literals in JavaScript?
...).join("").replace(/(.)(?=.*\1)/g, "");
var regex3 = new RegExp(expression_one.source + expression_two.source, flags);
// regex3 is now /foobar/gy
It's just more wordy than just having expression one and two being literal strings instead of literal regular expressions.
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What are the underlying data structures used for Redis?
...o accomplish what?.
Strings
This is the base type of all the types. It's one of the four types but is also the base type of the complex types, because a List is a list of strings, a Set is a set of strings, and so forth.
A Redis string is a good idea in all the obvious scenarios where you want to...
pandas GroupBy columns with NaN (missing) values
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This is mentioned in the Missing Data section of the docs:
NA groups in GroupBy are automatically excluded. This behavior is consistent with R, for example.
One workaround is to use a placeholder before doing the groupby (e.g. -1):
In [...
Should all jquery events be bound to $(document)?
...out having to explicitly rebind event handlers every time you create a new one.
When you have lots of objects that all want the exact same event handler (where lots is at least hundreds). In this case, it may be more efficient at setup time to bind one delegated event handler rather than hundreds o...
How do I force a favicon refresh?
...locally using its own tomcat and I have just changed the favicon for a new one. Problem is that I can not see it in any browser. The old favicon shows up or I get no favicon at all, but not my new one. I do not think this is a Grails issue per se, more an issue with favicons.
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Send string to stdin
...
You can use one-line heredoc
cat <<< "This is coming from the stdin"
the above is the same as
cat <<EOF
This is coming from the stdin
EOF
or you can redirect output from a command, like
diff <(ls /bin) <(ls /u...