switch case javascript

 

利用除法Or取模缩小范围

var b=98;
switch(parseInt(b/10)){
    case 10:
        console.log('full');
        break;
    case 9:
    case 8:
    case 7:
    case 6:
        console.log('qualified');
        break;
    default:
        console.log('unqualified');
        break;
}

 

b=100;
switch(true){
    case b==100:
        console.log('full');
        break;
    case b>60:
        console.log('qualified');
        break;
    case b<60:
        console.log('unqualified');
        break;
    default:
        console.log('Unknow');
        break;
}