var numb = [88,88,88,88,88];
function createReduce() {
    var arrBefore = numb;
    var reduceByOne = function() {
        return  arrBefore.map(function(item,i,arr) {
          return item-1;
        });
    }
    return reduceByOne;
}
var myReduceByOne = createReduce();
console.log(myReduceByOne());
console.log(myReduceByOne());
console.log(myReduceByOne());