The constructor Method

Static methods and properties are defined on the class itself, not on instances. They are called using the class name. Static members are useful for utility functions, constants, or singleton-like behavior.

Key Points

• Declared with the static keyword.
• Cannot be called on instances; only on the class.
• Can be inherited by subclasses.
• Static fields (ES2022) allow defining static properties directly.

Code Example

class MathUtils {
  static PI = 3.14159; // static field
  static add(a, b) {
    // static method
    return a + b;
  }
  static multiply(a, b) {
    return a * b;
  }
}

console.log(MathUtils.PI); // 3.14159
console.log(MathUtils.add(5, 3)); // 8

const utils = new MathUtils();
// utils.add(2,3); // TypeError: utils.add is not a function