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fix: #758 optimised armstrongNumber code #1374

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Merged
raklaptudirm merged 1 commit into from
Sep 30, 2023
+7 −10
Merged

fix: #758 optimised armstrongNumber code #1374

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17 changes: 7 additions & 10 deletions Maths/ArmstrongNumber.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,16 +9,13 @@
*/

const armstrongNumber = (num) => {
if (num < 0 || typeof num !== 'number') return false

let newSum = 0

const numArr = num.toString().split('')
numArr.forEach((num) => {
newSum += parseInt(num) ** numArr.length
})

return newSum === num
if (typeof num !== 'number' || num < 0) return false
const numStr = num.toString()
const sum = [...numStr].reduce(
(acc, digit) => acc + parseInt(digit) ** numStr.length,
0
)
return sum === num
}

export { armstrongNumber }