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JavaScript / XPath - get preceding sibling element

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Created by:

Iona

445

In this short article we would like to show how to find using XPath, preceding sibling element reference in JavaScript.

In below example we are looking for preceding slibling (/preceding-sibling::input) that occurs as previous of any label element and contains Visible text inside (//label[text()='Visible']).

Quic solution:

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<!doctype html>
<html>
<body>
  <div id="element">
    <label>
      <input type="checkbox" checked />
      <span>Visible</span>
    </label>
  </div>
  <script>
    
    var element = document.querySelector('#element');
​
    var result = document.evaluate("//span[text()='Visible']/preceding-sibling::input", element);
    var checkbox = result.iterateNext();
​
    if (checkbox) {
      console.log(checkbox.checked);
    }
    
  </script>
</body>
</html>