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<html><body><input type="week" id="myWeek" value="1995-W35"><p>Click the button to change the default value of the week field.</p><button type="button" onclick="myFunction()">Try it</button><p><strong>Note:</strong> input elements with type="week" are not supported in Internet Explorer or Firefox.</p><script>function myFunction() { document.getElementById("myWeek").defaultValue = "2014-W43";}</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_week_defaultvalue by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 05 Sep 2022 15:53:06 GMT --></html>