nl_tokens: Insert commas at randomly selected words . This function modifies values inside <code > words< / code > array
pl_tokens: function insertCommas ( words ) { if ( <mask> . length < 2 ) { return words ; } words = words . slice ( ) ; const len = words . length ; const hasComma = / ,$ / ; let totalCommas = 0 ; if ( len > 3 && len <= 6 ) { totalCommas = rand ( 0 , 1 ) ; } else if ( len > 6 && len <= 12 ) { totalCommas = rand ( 0 , 2 ) ; } else { totalCommas = rand ( 1 , 4 ) ; } for ( let i = 0 , pos , word ; i < totalCommas ; i ++ ) { pos = rand ( 0 , len - 2 ) ; if ( ! hasComma . test ( words [ pos ] ) ) { words [ pos ] += ',' ; } } return words ; }