WEB TUTORIALS
PRACTICE EXAMPLES
HTML REFERENCES
CSS REFERENCES
PHP REFERENCES

How to Get the Class Name of an Object in JavaScript

Topic: JavaScript / jQueryPrev|Next

Answer: Use the name Property

You can use the name property of the object's constructor function to get the name of the class that is used to instantiated the object. Here's an example:

  • <script>    
  • class Rectangle {
  •     // Class constructor
  •     constructor(length, width) {
  •         this.length = length;
  •         this.width = width;
  •     }
  •     
  •     // Class method
  •     getArea() {
  •         return this.length * this.width;
  •     }
  • }
  •  
  • var rectObj = new Rectangle(5, 10);
  • alert(rectObj.getArea()); // Outputs: 50
  • alert(rectObj.constructor.name) // Outputs: Rectangle
  • </script>

Please check out the tutorial on JavaScript ES6 features to learn more about JavaScript classes.


Related FAQ

Here are some more FAQ related to this topic:

Your Feedback:

We would love to hear from you, please drop us a line.