JavaScript Function: getNextStep(v, i) for Card and Board Steps

function getNextStep(v, i) { if (v == 'Card') { if (i == 'stepS2' && this.cardState) return 'stepS3'; else if (i == 'stepS3' && this.cardState) return 'stepS4'; else if (i == 'stepS4' && this.cardState) return 'stepS5'; else return 'invalid step'; } else if (v == 'Board') { if (i == 'stepS2' && this.boardState) return 'stepS3'; else if (i == 'stepS3' && this.boardState) return 'stepS4'; else if (i == 'stepS4' && this.boardState) return 'stepS5'; else return 'invalid step'; } else { return 'invalid value'; } }