short hand for chaining logical operators in javascript?

Question

Is there a better way to write the following conditional in javascript?

if ( value == 1 || value == 16 || value == -500 || value == 42.42 || value == \'somet         


        

Answer 1

Well, you could use a switch statement...

switch (value) {
  case 1    : // blah
              break;
  case 16   : // blah
              break;
  case -500 : // blah
              break;
  case 42.42: // blah
              break;
  case "something" : // blah
                     break;
}

If you're using JavaScript 1.6 or greater, you can use the indexOf notation on an array:

if ([1, 16, -500, 42.42, "something"].indexOf(value) !== -1) {
   // blah
}

And for the ultimate in hackiness, you can coerce the values to strings (this works for all browsers):

if ("1,16,-500,42.42,something".indexOf(value) !== -1) {
   // blah
}