I guess you mean a method to produce an array by removing all items
from array 1 that are not in array 2 ?

Something like this?

function ArraySubtract(ara1,ara2) {
  var aRes = new Array() ;
  for(var i=0;i<ara1.length;i++) {
    if( ! (ara2.contains(ara1[i]) )) {
      aRes.push(ara1[i]) ;
    }
  }
  return aRes ;
}

Mark

On Apr 25, 8:48 am, Mike <eris...@gmail.com> wrote:
> Javascript or jQuery - compare / subtract (2) arrays, output to a 3rd
> array?
>
> I am having a hard time finding a reference as to what is the best
> practice for this. . .
>
> Any thoughts or suggestion?
>
> Mike
>
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