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Remove repeat item from a list

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I have tried some way to remove some repeat item from a list.
Followed is the simple one

foreach(item list
list=cons(item remove(item list))
)

Do anyone have a more available command or fuction?


Originally posted in cdnusers.org by leonlee
Parents

  • This is what I use...

    procedure(_removeDuplicates(masterList)
    let((finalList)
    foreach(item masterList
    unless(member(item car(finalList))
    finalList=tconc(finalList item)
    )
    )
    finalList
    )
    )

    If your are going through a list of dbids, then you can use memq instead of member to speed this up.


    Originally posted in cdnusers.org by natebizu
Reply

  • This is what I use...

    procedure(_removeDuplicates(masterList)
    let((finalList)
    foreach(item masterList
    unless(member(item car(finalList))
    finalList=tconc(finalList item)
    )
    )
    finalList
    )
    )

    If your are going through a list of dbids, then you can use memq instead of member to speed this up.


    Originally posted in cdnusers.org by natebizu
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