Question

I have following array.

var signs = ['+', '-', '*', '/'];

And following variables to add with each sign above in the array.

var right_digit = 1;
var left_digit = 5;

Can I do something like below in JS?

var answer = left_digit sign[0] right_digit;

Answer 1

If you want to avoid eval you can do something like:

var signs = {
    '+': function(op1, op2) { return op1 + op2; },
    ...
};

var answer = signs['+'](left_digit, right_digit);