Building Front-End Web Applications with Plain JavaScript/

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Single-Valued Reference Properties

Single-Valued Reference Properties

Let’s learn how to implement single-valued reference properties.

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Implementation

When coding a class, the ES2015 feature of function parameter destructuring allows us to use a single constructor parameter as a record with a simplified syntax for defining its fields. We make use of this new feature by obtaining a simplified class definition syntax, as shown in the following example:

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class Book {
  constructor({ isbn, title, year, ...}) {
    this.isbn = isbn;
    this.title = title;
    this.year = year;
   ...
  }
 ...
}
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