1281-subtract-the-product-and-sum-of-digits-of-an-integer

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js

/**
 * @param {number} n
 * @return {number}
 */
var subtractProductAndSum = function(n) {
    let prod = 1;
    let sum = 0;
    while(n>0){
        prod *= n%10;
        sum += n%10;
        n = Math.floor(n/10);
    }
    return prod-sum;
};