jsdoc

Generating API documentation

This code sample shows how to use JSDoc comments to document a constructor function for a book. When JSDoc processes this, it will generate documentation for the Book function, including its parameters and their types.

/**
 * Represents a book.
 * @constructor
 * @param {string} title - The title of the book.
 * @param {string} author - The author of the book.
 */
function Book(title, author) {
  this.title = title;
  this.author = author;
}

Documenting a class and its methods

This code sample demonstrates how to document a class and its constructor, as well as a method within the class. JSDoc will generate documentation for the Point class, its constructor, and the getDistanceTo method, including parameter and return types.

/**
 * Class representing a point.
 */
 class Point {
   /**
    * Create a point.
    * @param {number} x - The x value.
    * @param {number} y - The y value.
    */
   constructor(x, y) {
     this.x = x;
     this.y = y;
   }

   /**
    * Get the distance from this point to another point.
    * @param {Point} point - The point to get the distance to.
    * @returns {number} The distance.
    */
   getDistanceTo(point) {
     // ... implementation ...
   }
 }

Documenting module exports

This code sample shows how to document a module and a function that it exports. JSDoc will generate documentation for the module and the exported function, including the function's parameters and return value.

/**
 * @module myModule
 */

/**
 * A function that does something.
 * @param {number} input - The input number.
 * @returns {number} The result.
 */
exports.myFunction = function(input) {
  // ... implementation ...
};