What is the significance of the /** @class */ in Typescript?

As I delve into learning typescript, I have come across an interesting observation regarding the compiled javascript output. It seems that for every class in the compiled code, there is a specific comment attached to it that looks like this: /** @class */.

For instance, take a look at this snippet:

var Person = /** @class */ (function () {
    function Person(name, age) {
        this.name = name;
        this.age = age;
    }
    return Person;
}());

This leads me to question - Is this comment merely cosmetic or does it serve a functional purpose? And if there is indeed functionality behind it, what precisely is its role?

Answer №2

If you want to document your code, the output includes a JSDoc comment which can be helpful: .

By using this tag in the comment, it specifies to the documentation generator that the upcoming function is a constructor.

This JSDoc comment doesn't serve any functional purpose or act as syntactic sugar. It's simply there for generating documentation if needed. That's all.

Answer №3

Is there any practical purpose to this comment, or is it simply added for aesthetic reasons?

It serves neither function, as comments do not have their own syntax.

This comment is specifically formatted as JSDoc. @Amy's response provides more information on that.

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Can you explain the purpose of the lodash get function?

I'm struggling to understand the purpose of this specific line of code: const loanPeriod: number = get(product, 'TermMonths', this.defaultTerm) / this.monthsInAYear; The variables defaultTerm and monthsInAYear are defined globally. The prod ...

Similar to `util.inspect` in Node.js, Deno also has a function

Is there a utility function in Deno that can stringify an Object or primitive similar to Node.js util.inspect? For instance, if I have a JSON object in Node.js and want to display its contents: > m = {k1:'v1', k2:'v2'} { k1: ' ...

Add a series of characters to the conclusion of an element's property

Currently, I am working on a function that is tasked with adding and removing checkbox values in an array. The goal is to assign the array name based on the ID attribute of each element. For instance, if the ID is "color", the values will be pushed to the ...

Errors occur when dealing with higher order functions, such as the "map is

Struggling with higher order functions in JavaScript - I keep running into the error 'map is undefined'. Anyone able to offer some assistance? function mapper(f) { return function(a) { return map(a, f); }; } var increment = function(x) { re ...

What steps can be taken to have Eslint/Prettier report errors and warnings within a CI environment?

Recently, I encountered an issue with my Vue app where I am using Eslint with Prettier. Even though I have set up a Github action to check the code style, running npm run lint -- --no-fix only logs the warnings and does not cause the workflow to fail. I r ...

What is the best way to filter by enum value in Typescript?

If I define an enum as follows: export enum Status { InProgress = 0, Completed = 1, Cancelled = 2 } and have a class that references the enum: import { Status } from "./Status"; export class TaskDto { public name: string = null; public c ...

Utilizing the openweathermap weather widget on a Leaflet map within the R programming

I am attempting to incorporate custom weather tiles onto a leaflet map within a Shiny application by utilizing the leaflet-openweathermap JavaScript library found here. As someone who is not well-versed in JavaScript, I am encountering difficulties with re ...

Mongodb: Search for IDs within a nested array field

My MongoDB data structure includes user profiles with friend request information. Here's an example: { _id: "someId", profile: { username: "oliv", friendRequests: [ { fromUserId: "anId", accepted: false, created: " ...

Position the model in the center of the scene using three.js

Currently, I am utilizing the code below to center an object within the scene. While it works perfectly with the json loader, the issue arises when using either OBJLoader or OBJMTLLoader. function modelLoadedCallback(geometry, materials) { // Create ...

Error: The module could not be found due to an inability to resolve the parsed request

I am working on a project that uses class components as a requirement by the company, and I cannot switch to function components. After running elint --fix and restarting the project, I encountered an error that is specific to just one file. The error me ...

What is the difference between getAttribute() and Element object properties?

When working with HTMLElement objects, both Element.getAttribute("id") and Element.id will return the same value. Which method is preferred for accessing attributes of an HTMLElement object? Are there any cross-browser compatibility issues with methods l ...

Rotating a Three.js Object in 3D

Hey there! I've encountered an unusual issue in THREE JS(r71) / THREEx (THREEx.LaserBeam). The problem lies with the rotation of Object 3D. I'm converting latitude and longitude points into phi and theta as follows: (Using different variables fo ...

What is the best way to determine if a radio button has been chosen, and proceed to the next radio button to display varied information?

The goal is to display the <div class="resp"> below each radio button when it is selected, with different content in each <div class="resp">. The previously selected <div class="resp"> should be hidden when a new radio button is chosen. O ...

Comparing OLOO and OO in ReactJS for front-end web development

After reading Kyle's book, I found it to be extremely informative. However, I am a bit perplexed by the discussion in "You Don't Know JS: this & Object Prototypes". The series argues that the "Object Linking to Other Object" design pattern is cl ...

Issues with $.ajaxSetup({async:false}) persisting in Internet Explorer

I have been trying to implement ajax file upload using the code below. It works perfectly in Firefox, but I encountered issues in IE. I specifically need a synchronous operation for which I set the async parameter to false: $.ajaxSetup({ async: false }); ...

What causes an error when attempting to add a new user to the database?

Currently, I am delving into the world of Mongodb. To kick things off, I initiated by executing npm install --save mongoose uuid within the confines of Terminal. The primary objective of my project revolves around storing user information in the database. ...

Images in Next.js work properly in a local environment, but encounter issues in the production environment

My Next.js images are working fine on local, but when I try to push it to production, it crashes. Here is my code View my image component here This is where I map the images Here is the part of my .json file where I fetch data It works properly in loca ...

Prevent any flashing or flickering while updating current DOM elements during the page loading event

In my vanilla JavaScript code, I have a function that changes the text content of a span element in the DOM on page load event. Although the DOM elements are changed as expected, there is still a slight flickering effect before the text is updated for the ...

The React Native Expo is throwing an error stating that it is unable to locate the module 'minizlib'

At the instructions available in the read.me of https://github.com/react-community/create-react-native-app Upon selecting my template using the expo init command, I encountered the following error: Cannot find module 'minizlib' Error: Cannot fi ...

Can you explain the purpose of the bind function?

I've been diving into the world of Angular2 with TypeScript and stumbled upon a piece of code that has me scratching my head: export var userServiceInjectables: Array<any> = [ bind(UserService).toClass(UserService) ]; Can someone break down ...