Add js way example

tshemsedinov · tshemsedinov · commit dcbe883dc34a · 2026-03-18T11:45:08.000+02:00
diff --git a/JavaScript/5-js-way.js b/JavaScript/5-js-way.js
@@ -0,0 +1,25 @@
+'use strict';
+
+const flyweightPool = new Map();
+
+const getFlyweight = (shared) => {
+  const { char, font, size } = shared;
+  const key = `${char}:${font}:${size}`;
+  let flyweight = flyweightPool.get(key);
+  if (!flyweight) {
+    flyweight = Object.freeze({ ...shared });
+    flyweightPool.set(key, flyweight);
+  }
+  return flyweight;
+};
+
+const createChar = (char, font, size, row, col) => {
+  const intrinsic = getFlyweight({ char, font, size });
+  return { intrinsic, row, col };
+};
+
+// Usage
+
+const a1 = createChar('A', 'Arial', 12, 0, 0);
+const a2 = createChar('A', 'Arial', 12, 0, 5);
+console.log(a1.intrinsic === a2.intrinsic);
