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Isn't it set theory: newItems - origItems?
Think of the two sets as a Venn Diagram, intersection, union, etc.
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NeverJustHere wrote: Think of the two sets as a Venn Diagram, intersection, union, etc.
After posting. I got up. Walked out to make coffee and was talking to the wife unit when that hit me.
Sometimes I just post dumb questions. Oops.
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I just missed that you answered already with set theory. Was not my intention to plagiarize
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After posting. I got up. Walked out to make coffee and was talking to the wife unit when that hit me. Blush |
Thank you for your informative and kind answer.
I think I must've been thinking of the specific instance and related code so much I confused my simple brain. I'm kinda dumb sometimes.
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Don't worry, happens to me nearly everyday and sometimes (usually?) more than one time per day
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Thank you
I'm crawling under my desk for while.
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No need Or then I also have to do it.
A customer send me the information the angle is 390 deegree.
I was that much confused and answered this can't be possible. On the other hand I have no problem when somebody tells me the angle is 2.5 π rad whatelse
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Are duplicates possible? (Not that it really matters.)
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Thanks for your question. Duplicates in orig and new are possible.
Duplicates in final set are not allowed.
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I agree with the previous posters: Set Theory
In C++ there is the container std::set something similar exists in Python so I assume C# also has something like it.
In C++ it looks like this:
set_difference - C++ Reference[^]
"If we don't change direction, we'll end up where we're going"
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In Set Theory, the opposite of "Intersection" is "Difference". You're describing a Difference operation.
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Be careful on order if you use a library.
A.diff(B) != B.diff(A)
I have seen Difference used for this operation.
It looks like Complement could be another term.
There is also Symmetric Difference which contains outliers from both sets.
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OK, not a Maths term per se, but when anyone invokes the 'M' word in my hearing I always think "Freudenschade"......
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In case it might be useful to you.
I have ubuntu Linux running on my Win 10 laptop (WSL) and it has this handy program called comm. I use it when I need to do a task like you describe. HTH
Usage: comm [OPTION]... FILE1 FILE2
Compare sorted files FILE1 and FILE2 line by line.
When FILE1 or FILE2 (not both) is -, read standard input.
With no options, produce three-column output. Column one contains
lines unique to FILE1, column two contains lines unique to FILE2,
and column three contains lines common to both files.
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R.I.P. I liked some of his stuff, but definitely talented.
The less you need, the more you have.
Even a blind squirrel gets a nut...occasionally.
JaxCoder.com
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I finished GTAV DLC "The Contract" - which has been a bugbear for me as it crashed at the end of three missions several times. Got there in the end though. Quite a fun one!
And ... drum roll please ... I'm cooking a fish curry for supper tonight, so I just cut a Cod loin in half - half for Herself, half for me. Cutting by eye, I them weighed the pieces. 134g for the first one, and ... 133g for the second. Nice. That's a small but good triumph, I don't normally estimate it that close!
Probably never get quite that close again, either.
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Fish should be eaten raw (or breaded and deep fried).
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Yep. Speckled Trout in New Orleans. I have had Cod before, and it was OK, but a little too bland for my tastes. Don't know how it is in a curry.
But that's what makes horse races. You go Griff!.
Spicy in NOLA
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I was reading that post and thought to myself - there but for the brace of cod go I.
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Boom-Tish!
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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He’s just trawling you Griff!
If you can't laugh at yourself - ask me and I will do it for you.
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