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

Here is an XOR function that takes a variable number of arguments (including two). The arguments only need to be truthy or falsy, not true or false.

function xor() {
    for (var i=arguments.length-1, trueCount=0; i>=0; --i)
        if (arguments[i])
            ++trueCount;
    return trueCount & 1;
}

On Chrome on my 2007 MacBook, it runs in 14 ns for three arguments. Oddly, this slightly different version takes 2935 ns for three arguments:

function xorSlow() {
    for (var i=arguments.length-1, result=false; i>=0; --i)
        if (arguments[i])
            result ^= true;
    return result;
}