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lenses, fclabels, data-accessor - which library for structure access and mutation is better
... putting twice is the same as putting once, or rather, that the second put wins.
put l b1 (put l b2 a) = put l b1 a
Note, that the type system isn't sufficient to check these laws for you, so you need to ensure them yourself no matter what lens implementation you use.
Many of these libraries als...
What does O(log n) mean exactly?
...t's versatile as an example. Plus I got to use robots in my explanation! A win all-around. (Also, it looks like your answer was made before I was even a member on StackOverflow to begin with!)
– John Feminella
Feb 23 '10 at 0:40
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Java “Virtual Machine” vs. Python “Interpreter” parlance?
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@S.Lott Because it's always good to win arguments with colleagues. ;)
– Qix - MONICA WAS MISTREATED
Oct 6 '14 at 3:50
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What is in your Mathematica tool bag? [closed]
... of images under these operations, i.e. they're equivalent, using the following
In[3] := SelectEquivalents[ pts, Union[Through[rots[#] ] ]& ] (*<-- Note Union*)
Out[3]:= {{{-1, -1, 0}, {-1, 1, 0}, {1, -1, 0}, {1, 1, 0}},
{{-1, 0, 0}, {0, -1, 0}, {0, 1, 0}, {1, 0, 0}},
{{0...
How to use git bisect?
...he history to find a particular regression. Imagine that you have the following development history:
... --- 0 --- 1 --- 2 --- 3 --- 4* --- 5 --- current
You know that your program is not working properly at the current revision, and that it was working at the revision 0. So the regression was li...
JavaScript hashmap equivalent
...ster in your system...
– Matt R
Feb 11 '13 at 11:05
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@MattR Actually your example will work pro...
Check if a class is derived from a generic class
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xanadont
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answered Jan 19 '09 at 14:19
JaredParJaredPar
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What is Mocking?
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edited Nov 30 '16 at 11:35
answered Apr 19 '10 at 7:39
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How do you use bcrypt for hashing passwords in PHP?
... algorithm. You cannot retrieve the plain text password without already knowing the salt, rounds and key (password). [Source]
How to use bcrypt:
Using PHP >= 5.5-DEV
Password hashing functions have now been built directly into PHP >= 5.5. You may now use password_hash() to create a bcrypt h...
How can I quantify difference between two images?
...ions, to jpg and substract. Really Nice.
– Diego Andrés Díaz Espinoza
Jul 1 '18 at 2:09
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