javascript switch(true)

Question

Hi i am trying to handle an ajax json response

here is my code

success: function (j) {          switch(true)     {         case (j.choice1):              alert("choice2");         break;         case (j.choice2):                 alert("choice2");         break;         default:             alert("default");         break;     } } 

based on what j is return i do my action BUT i keep getting the default.

I have alert the j values and come correct.Some how case (j.choice1) case (j.choice2) is not working.

I tried case (j.choice1!="") (j.choice2!="") But in this scenario i keep getting the first choice.

What am i missing

Answer 1

It works for me:

var a = 0, b = true;        switch(true) {      case a:          console.log('a');          break;      case b:          console.log('b');          break;  }

However, the case labels must be equal to true, not jut implicitly true.
Also, only the first case that evaluates to true will execute.