use static property in javascript class code example

Example 1: js class static

class ClassWithStaticMethod {
  static staticMethod() {
    return 'static method has been called.';
  }
}

console.log(ClassWithStaticMethod.staticMethod());
// expected output: "static method has been called."

Example 2: javascript class static fields

class ClassWithInstanceField {
  instanceField = 'instance field'
}

class ClassWithStaticField {
  static staticField = 'static field'
}