# Count the Digits That Divide a Number

# 2520. Count the Digits That Divide a Number

Given an integer num, return the number of digits in num that divide num.

An integer val divides nums if nums % val == 0.

### Example 1:

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Input: num = 7

Output: 1

Explanation: 7 divides itself, hence the answer is 1.

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### Example 2:

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Input: num = 121

Output: 2

Explanation: 121 is divisible by 1, but not 2. Since 1 occurs twice as a digit, we return 2.

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Constraints:

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1 <= num <= 109 num does not contain 0 as one of its digits. ```

/** * @param {number} num * @return {number} */ var countDigits = function(num) { const numStr = `${num}`; let cnt = 0; for (let i = 0; i < numStr.length; i++) { if(num % +numStr[i] === 0) cnt++; } return cnt; };