HTML Tables with Hidden Data: Scraping What You Can't See
The article discusses how HTML tables can contain hidden data that is not visible during basic extraction. It explains various types of hidden data, including CSS-hidden columns, data attributes, title attributes, collapsed rows, and lazy-loaded content. The article also provides methods for extracting this hidden data using JavaScript and Python.
- ▪HTML tables often contain more data than what is visible, including hidden columns and data attributes.
- ▪CSS-hidden columns can be detected using browser developer tools, while data attributes store metadata that is not displayed to users.
- ▪Methods for extracting hidden data include modifying CSS styles with JavaScript and using Python libraries like BeautifulSoup.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 2076941) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } circobit Posted on May 20 HTML Tables with Hidden Data: Scraping What You Can't See #javascript #tutorial #webdev The table shows 10 columns. You export it. The CSV has 10 columns. But the page has 15 columns of data. Where did the other 5 go? HTML tables often contain more data than what's visible. Hidden columns, data attributes, collapsed rows—all invisible to basic extraction methods. Here's how to find and extract the data you can't see. Types of Hidden Data 1.
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