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Arjun Mahishi
2017-12-20 10:11:03 +05:30
parent 31f5f7d162
commit e9815e6c2b
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snippets/isArmstrongNumber.md
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@ -5,13 +5,13 @@ Checks if the given number is an armstrong number or not.
Convert the given number into array of digits. Use `Math.pow()` to get the appropriate power for each digit and sum them up. If the sum is equal to the number itself, return `true` otherwise `false`. Convert the given number into array of digits. Use `Math.pow()` to get the appropriate power for each digit and sum them up. If the sum is equal to the number itself, return `true` otherwise `false`.
```js ```js
const isArmstrongNumber = digits =>{ const isArmstrongNumber = digits => {
let total = 0, arr = (digits+"").split(""); let total = 0, arr = (digits+"").split("");
arr.map(d =>total += Math.pow(parseInt(d), arr.length)) arr.map(d => total += Math.pow(parseInt(d), arr.length))
if(total === digits) return true; return false; if(total === digits) return true; return false;
} }
// isArmstrongNumber(1634) -> true // isArmstrongNumber(1634) -> true
// isArmstrongNumber(371) -> true // isArmstrongNumber(371) -> true
// isArmstrongNumber(56) -> false // isArmstrongNumber(56) -> false
``` ```