How do I make functions not require quotations?

Question

function math(sign, ...numbers) {
return numbers.reduce((previous, current) => {
if(sign == '+') {
return previous + current;
} else if(sign == '-') {
return previous - current;
} else if(sign == '*') {
return previous * current;
} else if(sign == '/') {
return previous / current;
} else if(sign == '%') {
return previous % current;
} else if(sign == '^') {
return Math.pow(previous,current);
}

});
}
I want to make it so that the user doesn't have to put quotations when using the functions, but I get an error when I try to remove the quotations from the if statement/the functions, what do I do?

Answer 1

so you want to call the function like this ?
math(+,[1,2,3,4])

i dont think its possible in node