remove-nth ( n seq -- seq' )
Factor handbook » The language » Collections » Sequence operations » Adding and removing sequence elements

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remove-eq ( elt seq -- newseq )

Vocabulary
sequences

Inputs

n	an integer
seq	a sequence

Outputs

seq'	a sequence

Word description
Creates a new sequence without the element at index n.

Examples
Notice that the original sequence is left intact:

USING: sequences prettyprint kernel ; { 1 2 3 } 1 over remove-nth . .
{ 1 3 } { 1 2 3 }

See also
remove, remove-eq, remove-eq!, remove!, remove-nth!

Definition

USING: kernel math ;

IN: sequences

: remove-nth ( n seq -- seq' )
    [ [ dup 1 + ] dip snip-slice ] keep append-as ;