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<!DOCTYPE html>
<html>
<body>
​
<p>A form with a search field that CANNOT contain the following characters: ' or "</p>
​
<form action="https://www.w3schools.com/action_page.php">
  Search: <input type="search" id="mySearch" name="search" pattern="[^'\x22]+" title="Invalid input">
  <input type="submit">
</form>
​
<p>Click the "Try it" button to display the value of the pattern attribute of the search field.</p>
​
<button onclick="myFunction()">Try it</button>
​
<p id="demo"></p>
​
<script>
function myFunction() {
  var x = document.getElementById("mySearch").pattern;
  document.getElementById("demo").innerHTML = x;
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_search_pattern by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:17:19 GMT -->
</html>
​
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