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Difference between Dictionary and Hashtable [duplicate]
...at is the difference between Dictionary and Hashtable. How to decide which one to use?
7 Answers
...
How is Racket different from Scheme?
...ng. Also, Racket does have the more restricted letrec -- for example, the one in the r5rs language; it's an intentional choice to use the letrec*-like version in the default language.
– Eli Barzilay
Jul 31 '10 at 15:57
...
Algorithm to find Largest prime factor of a number
...re several more efficient ways to find factors of big numbers (for smaller ones trial division works reasonably well).
One method which is very fast if the input number has two factors very close to its square root is known as Fermat factorisation. It makes use of the identity N = (a + b)(a - b) =...
XSD - how to allow elements in any order any number of times?
...s. So this sounds like what you are looking for.
Edit: if you wanted only one of them to appear an unlimited number of times, the unbounded would have to go on the elements instead:
Edit: Fixed type in XML.
Edit: Capitalised O in maxOccurs
<xs:element name="foo">
<xs:complexType>
...
Regular expression to stop at first match
...
Here's another way.
Here's the one you want. This is lazy [\s\S]*?
The first item:
[\s\S]*?(?:location="[^"]*")[\s\S]* Replace with: $1
Explaination: https://regex101.com/r/ZcqcUm/2
For completeness, this gets the last one. This is greedy [\s\S]*
The...
How to combine multiple conditions to subset a data-frame using “OR”?
...ctually an additional error that I noticed when I was correcting the first one. The conditional clause that checks for NA values needs to be first if it is to be handled as I intended, since ...
> NA & 1
[1] NA
> 0 & NA
[1] FALSE
Order of arguments may matter when using '&".
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Removing index column in pandas when reading a csv
...
can one remove the index name?
– Quant
Sep 26 '14 at 20:55
3
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Add directives from directive in AngularJS
...Higher numbers run first. The default priority is 0 if you don’t specify one.
EDIT: after the discussion, here's the complete working solution. The key was to remove the attribute: element.removeAttr("common-things");, and also element.removeAttr("data-common-things"); (in case users specify data...
Algorithms based on number base systems? [closed]
...ble to numbers too!)
Redundant number systems (systems that have more than one representation of a number) are useful.
If you arrange the first digit to be non-zero or use a zeroless representation, retrieving the head of the data structure can be efficient.
Avoid cascading borrows (from taking the ...
How do you pass arguments to define_method?
...
end
end
a = Bar.new
a.foo :one, 'two', :three, 4, 5 do
'six'
end
Update
Ruby 2.0 introduced double splat ** (two stars) which (I quote) does:
Ruby 2.0 introduced keyword arguments, and ** acts like *, but for keyword arguments. It returns a...