Switch js

switch (n) { case 0: puts("You typed zero."); break; case 1: case 9: puts("n is a perfect square."); break; case 2: puts("n is an even number."); case 3: case 5: case 7: puts("n is a prime number."); break; case 4: puts("n is a perfect square."); case 6: case 8: puts("n is an even number."); break; default: puts("Only single-digit numbers are allowed."); break;}

 

 

function doX(context){ return context; }function doY(context){ return context; }function doN(context){ return context; } var cases = { 1: doX, 2: doY, 3: doN}; if (cases[something]) { context = cases[something](context);}

 

 

http://james.padolsey.com/javascript/how-to-avoid-switch-case-syndrome/