Remove multiple indices from array in Swift -

i have array , want remove bunch of indices

var arr = [0,1,2,3,4,5,6] var rmindices = [1,4,5] 

what best way remove indices 1,4,5 arr?

rather list of indices remove, may easier have list of indices keep, can using set type:

let rmindices = [1,4,5] let keepindices = set(arr.indices).subtract([1,4,5]) 

then can use permutationgenerator create fresh array of indices:

arr = array(permutationgenerator(elements: arr, indices: keepindices))