diff --git a/snippets/isArmstrongNumber.md b/snippets/isArmstrongNumber.md
index d934dd715..2b9f2970a 100644
--- a/snippets/isArmstrongNumber.md
+++ b/snippets/isArmstrongNumber.md
@@ -5,10 +5,7 @@ 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`.
 
 ```js
-const isArmstrongNumber = num => {
-	let arr = (num+"").split("");
-	return arr.reduce((a, d) => parseInt(a) + Math.pow(parseInt( d ), arr.length), 0) == num ? true : false
-}
+const isArmstrongNumber = digits => ( arr => arr.reduce( ( a, d ) => a + Math.pow( parseInt( d ), arr.length ), 0 ) == digits ? true : false )( ( digits+'' ).split( '' ) )
 
 // isArmstrongNumber(1634) -> true
 // isArmstrongNumber(371) -> true