JavaScript: Check a given number is self-dividing or not
JavaScript Math: Exercise-114 with Solution
Write a JavaScript program to check a given number is self-dividing number or not.
In mathematics, a self-dividing number is one that can be divided by every digit (except digit zero) within it.
Test Data:
(48) -> true
(22) -> true
(63) -> false
Sample Solution:
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript program to Check a given number is self-dividing or not</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function test(n) {
i = n;
num = i;
flag = true;
while (num > 0) {
mod = num % 10;
if (i % mod !== 0) {
flag = false;
}
num = Math.floor(num / 10)
}
return flag;
}
n = 48
console.log("n = " + n)
console.log("Check the said number is self-dividing or not: " + test(n));
n = 22
console.log("n = " + n)
console.log("Check the said number is self-dividing or not: " + test(n));
n = 63
console.log("n = " + n)
console.log("Check the said number is self-dividing or not: " + test(n));
Sample Output:
n = 48 Check the said number is self-dividing or not: true n = 22 Check the said number is self-dividing or not: true n = 63 Check the said number is self-dividing or not: false
Flowchart:

Live Demo:
See the Pen javascript-math-exercise-114 by w3resource (@w3resource) on CodePen.
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Next: Javascript Array Exercises
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JavaScript: Tips of the Day
Shorten an array using its length property
A great way of shortening an array is by redefining its length property.
let array = [0, 1, 2, 3, 4, 5, 6, 6, 8, 9] array.length = 4 // Result: [0, 1, 2, 3]
Important to know though is that this is a destructive way of changing the array. This means you lose all the other values that used to be in the array.
Ref: https://bit.ly/2LBj213
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