count the total number of digits of a number in javascript
const count = n => String((Math.abs(n))).length;
count(123); // ➞ 3
count(-45678); // ➞ 5
count(8912); // ➞ 4
count the total number of digits of a number in javascript
const count = n => String((Math.abs(n))).length;
count(123); // ➞ 3
count(-45678); // ➞ 5
count(8912); // ➞ 4
sum of digits in a whole number javascript
sum = 0;
while (value) {
sum += value % 10;
value = Math.floor(value / 10);
}
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