constructor-super.md

Pattern: Missing super() in derived class constructor

Issue: -

Description

When a class extends another class, the constructor must call super() to execute the parent class's constructor. Failing to do so will cause a runtime error.

Examples

Example of incorrect code:

class A extends B {
  constructor() {
    // no super() call
  }
}

Example of correct code:

class A extends B {
  constructor() {
    super();
  }
}