question: truncates the string at the length specified concode_field_sep PlaceHolder placeHolder concode_field_sep boolean isBlank concode_elem_sep String capitalize concode_elem_sep String valueOrDefault
target: String function ( String arg0 , int arg1 ) { return arg0 . arg1 ( ) > arg1 ? arg0 . substring ( 0 , arg1 ) : arg0 ; }