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<!DOCTYPE html>
<html>
<body>
​
<a id="myAnchor" href="../index.html" target="_blank">Go to w3schools.com</a>.
​
<p>Click the button to find out if the a element has a "target" attribute. If so, change the value of the target attribute to "_self_" instead of "_blank".</p>
​
<p>Try clicking on the link before and after you have clicked the button.</p>
​
<button id="myBtn" onclick="myFunction()">Try it</button>
​
<p><strong>Note:</strong> Internet Explorer 8 and earlier does not support the hasAttribute() and setAttribute() methods.</p>
​
<script>
function myFunction() {
  var x = document.getElementById("myAnchor");
​
  if (x.hasAttribute("target")) {
    x.setAttribute("target", "_self");
  }
}
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_element_hasattribute2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:02:19 GMT -->
</html>
​
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