Scrape an element based on its text

As shown in the video, the text() function also allows you to select elements (and their parents) based on their text. Here's an ordered list:

<h3>The rules of programming</h3>
<ol>
  <li>Have <em>fun</em>.</li>
  <li><strong>Don't</strong> repeat yourself.</li>
  <li>Think <em>twice</em> when naming variables.</li>
</ol>

In this exercise, your goal is to extract the li element where "twice" is emphasized.

You might think that, here, it would be much easier to apply a CSS selector like li:last-child, but wait until you finish this exercise…

programming_html contains the above HTML document.

Deze oefening maakt deel uit van de cursus

Web Scraping in R

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Praktische interactieve oefening

Probeer deze oefening eens door deze voorbeeldcode in te vullen.

# Select all li elements
programming_html %>%
	html_elements(___ = ___)

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