Your web page may sometimes need to use information from other web pages that do not provide an API. For instance, you may need to fetch stock price information from a web page in real time and display it in a widget of your web page. However, some of the stock price aggregation websites don’t provide APIs. In such cases, you need to retrieve the source HTML of the web page and manually find the information you need. This process of retrieving and manually parsing HTML to find specific info...
