fix(core): update

test/test.ts

@@ -26,8 +26,8 @@ tap.test('should create a folded object', async () => {
 });
 
 tap.test('should enfold from object', async () => {
-  mySomeClass.enfoldFromObject({ thisis: 'test2' });
-  expect(mySomeClass)
+  const mySomeClass2 = SomeClass.enfoldFromObject({ thisis: 'test2' });
+  expect(mySomeClass2)
     .property('thisis')
     .to.equal('test2');
 });

ts/index.ts

@@ -14,6 +14,19 @@ export class Smartjson {
     objArg = JSON.parse(bufferedJson);
     return plugins.stableJson(objArg, optionsArg);
   }
+  
+  /**
+   * enfolds data from an object
+   */
+  public static enfoldFromObject(objectArg) {
+    const newInstance = new this();
+    for (const keyName in objectArg) {
+      if (newInstance.saveableProperties.indexOf(keyName) !== -1) {
+        newInstance[keyName] = objectArg[keyName];
+      }
+    }
+    return newInstance;
+  }
 
   // ========
   // INSTANCE
@@ -31,17 +44,6 @@ export class Smartjson {
     }
     return newFoldedObject;
   }
-
-  /**
-   * enfolds data from an object
-   */
-  public enfoldFromObject(objectArg) {
-    for (const keyName in objectArg) {
-      if (this.saveableProperties.indexOf(keyName) !== -1) {
-        this[keyName] = objectArg[keyName];
-      }
-    }
-  }
 }
 
 /**