Solution 1

Author: vladyslav-antoniv

package-lock.json

@@ -17,7 +17,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^2.1.1",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
     "eslint-plugin-node": "^11.1.0",

package.json

@@ -2,14 +2,45 @@
 
 class Animal {
   // write your code here
+  static alive = [];
+  constructor(name, health = 100) {
+    this.name = name;
+    this.health = health;
+    Animal.alive.push(this);
+  }
+
+  die() {
+    Animal.alive = Animal.alive.filter((animal) => animal !== this);
+  }
 }
 
 class Herbivore extends Animal {
   // write your code here
+  constructor(name) {
+    super(name);
+    this.hidden = false;
+  }
+
+  hide() {
+    this.hidden = true;
+  }
 }
 
 class Carnivore extends Animal {
   // write your code here
+  bite(target) {
+    if (target instanceof Carnivore) {
+      return null;
+    }
+
+    if (target instanceof Herbivore && target.hidden === false) {
+      target.health -= 50;
+    }
+
+    if (target.health <= 0) {
+      target.die();
+    }
+  }
 }
 
 module.exports = {