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<html><body><h2>JavaScript Math</h2><p>Math.sign() retuns whether a number is negative, positive or zero:</p><p id="demo"></p><script>document.getElementById("demo").innerHTML = Math.sign(3);</script></body><!-- Mirrored from www.w3schools.com/jsref/tryit.asp?filename=tryjsref_sign by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:39:11 GMT --></html>