Paste: A string replace word

! Takes a string two characers and replace every instance of char1 with char2 in the string
: replace ( string char1 char1 -- string' ) 
    [ [ over = ] dip swap [ swap drop ] [ drop ] if ] 2curry map 
;

Annotation: My Formatting

: replace ( string char char -- string' )
  [ 
    [ over = ] dip
    swap 
    [ swap drop ]
    [ drop ] if
  ] 2curry map ; 

Annotation: using fry

: replace ( string char1 char1 -- string' )
    '[ dup _ = [ drop _ ] when ] map ;

New Annotation