Is there anyway to implement XOR in javascript

Question

I\'m trying to implement XOR in javascript in the following way:

   // XOR validation
   if ((isEmptyString(firstStr) && !isEmptyString(secondStr)) |         


        

Answer 1

XOR just means "are these two boolean values different?". Therefore:

if (!!isEmptyString(firstStr) != !!isEmptyString(secondStr)) {
    // ...
}

The !!s are just to guarantee that the != operator compares two genuine boolean values, since conceivably isEmptyString() returns something else (like null for false, or the string itself for true).