diff --git a/codewars/8kyu/grasshopper-terminal-game-combat-function/koronya.js b/codewars/8kyu/grasshopper-terminal-game-combat-function/koronya.js
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index 000000000..abc9eee14
--- /dev/null
+++ b/codewars/8kyu/grasshopper-terminal-game-combat-function/koronya.js
@@ -0,0 +1,12 @@
+// [JS][8kyu] Grasshopper - Terminal game combat function
+// grasshopper-terminal-game-combat-function
+// https://www.codewars.com/kata/586c1cf4b98de0399300001d/train/javascript
+
+const combat = (health, damage) => {
+  const value = health - damage
+  return value < 0 ? 0 : value
+}
+
+combat(100, 5) === 95
+combat(92, 8) === 84
+combat(20, 30) === 0