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<!DOCTYPE html>
<html>
<body onkeydown="myFunction(event)">
​
<h1>Document execCommand() Method</h1>
​
<p>The executeCommand() method executes a specified command on selected text or section.</p>
​
<h2>Select Text and Press Shift</h2>
<p>Select some text in this page, and press the SHIFT button to make the selected text toggle between bold and normal.</p>
​
<script>
document.designMode = "on";
​
function myFunction(event) {
  if (event.keyCode == 16) {
    // Execute command if user presses the SHIFT button:
    document.execCommand("bold");
  }
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_document_execcommand by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:01:40 GMT -->
</html>
​
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