function intToFloat(num, decimal) { [code goes here] }
intToFloat(12, 1) // returns 12.0
intToFloat(12, 2) // returns 12.00
// and so on…

function intToFloat(num, decPlaces) { return num.toFixed(decPlaces); }

function intToFloat(num, decPlaces) { return num + '.' + Array(decPlaces + 1).join('0'); }

xAsString = (Number.isInteger(x)) ? (x + ".0") : (x.toString());