JavaScript: Display positive numbers with the plus sign

Question

How would I display positive number such as 3 as +3 and negative numbers such -5 as -5? So, as follows:

1, 2, 3 goes into +1, +2, +3

but if those are

-1, -2, -3 then goes into -1, -2, -3

Answer 1

You can use a simple expression like this:

(n<0?"":"+") + n 

The conditional expression results in a plus sign if the number is positive, and an empty string if the number is negative.

You haven't specified how to handle zero, so I assumed that it would be displayed as +0. If you want to display it as just 0, use the <= operator instead:

(n<=0?"":"+") + n 

Answer 2

// Forces signing on a number, returned as a string function getNumber(theNumber) {     if(theNumber > 0){         return "+" + theNumber;     }else{         return theNumber.toString();     } } 

This will do it for you.