diff --git a/codewars/7kyu/monotone-travel/koronya.js b/codewars/7kyu/monotone-travel/koronya.js
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+++ b/codewars/7kyu/monotone-travel/koronya.js
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+// [JS][7kyu] Monotone travel
+// monotone-travel
+// https://www.codewars.com/kata/54466996990c921f90000d61/train/javascript
+
+const isMonotone = (arr) => {
+  return arr.every((num, index) => {
+    if (index === 0) {
+      return true
+    }
+    return num >= arr[index - 1]
+  })
+}
+
+isMonotone([1, 2, 3]) == true
+isMonotone([1, 1, 2]) == true
+isMonotone([1]) == true
+isMonotone([3, 2, 1]) == false
+isMonotone([3, 2, 2]) == false