add: graphs et rushs

1 files changed, 17 insertions, 0 deletions

diff --git a/graphs/js/armstrongNumber/armstrongNumber.js b/graphs/js/armstrongNumber/armstrongNumber.js
new file mode 100644
index 0000000..59da441
--- /dev/null
+++ b/graphs/js/armstrongNumber/armstrongNumber.js
@@ -0,0 +1,17 @@
+function armstrongNumber(number) {
+    if (number < 0 || number == null || number == undefined) {
+        return false;
+    }
+
+    const ndigits = number.toString().length;
+    let sum = 0;
+
+    for (let i = 0; i < ndigits; i++) {
+        sum = sum + number.toString()[i] ** ndigits;
+    }
+
+    return sum === number;
+}
+module.exports = {
+    armstrongNumber,
+};