Integer => IntegerEntity, No more primitive

js/entity/IntegerEntity.js

@@ -0,0 +1,21 @@
+import Entity from "./Entity"
+
+export default class IntegerEntity extends Entity {
+
+    static attributes = {
+        value: Number
+    }
+
+    getAttributes() {
+        return IntegerEntity.attributes
+    }
+
+    constructor(options = {}) {
+        super(options)
+        this.value = Math.round(value)
+    }
+
+    toString() {
+        return this.value.toString()
+    }
+}