class User {
constructor(data = {}) {
const { name = 'Anonymous', age = 0, email = 'none' } = data;
this.name = name;
this.age = age;
this.email = email;
}
}
This constructor implements default parameters with destructuring: 1) It accepts an options object as a parameter, 2) It uses object destructuring to extract properties, 3) It provides default values for properties that aren't specified, 4) This creates a flexible API that doesn't require remembering parameter order, 5) It allows partial specification of properties, 6) This pattern is common in modern JavaScript to create more developer-friendly interfaces.