switch case

用來取代else if超多的場合 雖然對電腦來說都一樣>.< var moonPhase='full'; switch ( moonPhase) { case 'full': console.log('Howwwwlll!'); break; case 'mostly full': console.log('Arms and legs are getting hairier'); break; case'mostly new': console.log('Back on two feet.'); break; default: console.log('Invalid moon phase'); break; }