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); // ➞ 4count 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); // ➞ 4javascript to check each digit in the number
function test_same_digit(num) {
const first = num % 10;
while (num) {
if (num % 10 !== first) return false;
num = Math.floor(num / 10);
}
return true
}
console.log(test_same_digit(1234));
console.log(test_same_digit(1111));
console.log(test_same_digit(22222222));Copyright © 2021 Codeinu
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