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@types/jsdom
Advanced tools
@types/jsdom
TypeScript definitions for jsdom
What is @types/jsdom?
The @types/jsdom package provides TypeScript type definitions for jsdom, a pure-JavaScript implementation of many web standards, notably the WHATWG DOM and HTML Standards. It allows for the simulation of a web browser's environment in Node.js, enabling the testing of web pages and applications without a browser. This package is essential for TypeScript developers working with jsdom, as it offers type checking and IntelliSense support in code editors.
What are @types/jsdom's main functionalities?
Creating a new JSDOM instance
This feature allows you to create a new JSDOM instance, simulating an HTML page. It is useful for testing and scraping web content in a Node.js environment.
import { JSDOM } from 'jsdom';
const dom = new JSDOM(`<html><body><p>Hello world</p></body></html>`);Querying elements
After creating a JSDOM instance, you can query elements within the simulated page using standard DOM APIs, such as `querySelector`. This is particularly useful for testing DOM manipulation and event handling.
const paragraph = dom.window.document.querySelector('p');
console.log(paragraph.textContent); // Outputs: Hello worldModifying elements
This feature demonstrates modifying the content of an element within the JSDOM instance. It's a common operation for testing dynamic web applications.
paragraph.textContent = 'Goodbye world';
console.log(dom.window.document.querySelector('p').textContent); // Outputs: Goodbye worldOther packages similar to @types/jsdom
cheerio
Cheerio is a fast, flexible, and lean implementation of core jQuery designed specifically for the server. Unlike @types/jsdom, which simulates a full web browser environment, Cheerio parses, manipulates, and renders HTML on the server without implementing a full DOM or requiring a browser. It's more lightweight and faster for simple web scraping and page manipulation tasks.
puppeteer
Puppeteer is a Node library which provides a high-level API to control Chrome or Chromium over the DevTools Protocol. It is capable of rendering and testing web pages in a real browser environment. Compared to @types/jsdom, Puppeteer is more powerful for end-to-end testing and web scraping, especially for dynamic websites that require JavaScript execution, but it is also heavier and requires a Chromium or Chrome installation.
Installation
npm install --save @types/jsdom
Summary
This package contains type definitions for jsdom (https://github.com/jsdom/jsdom).
Details
Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/jsdom.
Additional Details
- Last updated: Thu, 30 May 2024 17:06:56 GMT
- Dependencies: @types/node, @types/tough-cookie, parse5
Credits
These definitions were written by Leonard Thieu, Johan Palmfjord, and ExE Boss.
FAQs
TypeScript definitions for jsdom
The npm package @types/jsdom receives a total of 8,153,282 weekly downloads. As such, @types/jsdom popularity was classified as popular.
We found that @types/jsdom demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
Package last updated on 30 May 2024
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