[removed] 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

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Answer 1

printableNumber = function(n) { return (n > 0) ? "+" + n : n; };