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What is Weak Head Normal Form?
... further (i.e. it contains no un-evaluated thunks).
These expressions are all in normal form:
42
(2, "hello")
\x -> (x + 1)
These expressions are not in normal form:
1 + 2 -- we could evaluate this to 3
(\x -> x + 1) 2 -- we could apply the function
"he" ++ "llo" ...
How to find where a method is defined at runtime?
...
This is really late, but here's how you can find where a method is defined:
http://gist.github.com/76951
# How to find out where a method comes from.
# Learned this from Dave Thomas while teaching Advanced Ruby Studio
# Makes the cas...
Converting Symbols, Accent Letters to English Alphabet
...e are thousands of characters in the Unicode chart and I want to convert all the similar characters to the letters which are in English alphabet.
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How to write to file in Ruby?
...rs cleaning up outdated questions and answers. Makes for a better site overall.
– jdl
Oct 11 '12 at 16:43
7
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How does one remove an image in Docker?
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Try docker rmi node. That should work.
Seeing all created containers is as simple as docker ps -a.
To remove all existing containers (not images!) run docker rm $(docker ps -aq)
share
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Minimum and maximum value of z-index?
...t to 0 and is
not a negative number.
Note that many properties that allow
an integer or real number as a value
actually restrict the value to some
range, often to a non-negative value.
So basically there are no limitations for z-index value in the CSS standard, but I guess most browse...
Batch equivalent of Bash backticks
...is very example only enables you to read the very first line of input. For all practical purposes the for /f variant is a much better one.
– Joey
May 4 '10 at 21:33
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C pointers : pointing to an array of fixed size
...proficiency with C language.
When the specifics of your application area call for an array of specific fixed size (array size is a compile-time constant), the only proper way to pass such an array to a function is by using a pointer-to-array parameter
void foo(char (*p)[10]);
(in C++ language th...
Rebasing a branch including all its children
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Should not that be --onto F instead of --onto B, as all these commits are aready onto B, and we move them onto F ?
– Ad N
Sep 27 '16 at 14:46
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Load multiple packages at once
...t retyping the require command over and over? I've tried three approaches all of which crash and burn.
10 Answers
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