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<html><body><h1>JavaScript Operators</h1><p>The assignment operator += can concatenate strings.</p><p id="demo"></p><script>let text1 = "What a very ";text1 += "nice day";document.getElementById("demo").innerHTML = text1;</script></body><!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_oper_concat4 by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 16:49:19 GMT --></html>