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<html><body><h1>JavaScript</h1><h2>The prototype Property</h2><p>The prototype property allows you to add new properties and methods to existing objects.</p><p>Add a salary to all employees:</p><p id="demo"></p><script>function employee(name, jobtitle, born) { this.name = name; this.jobtitle = jobtitle; this.born = born;}employee.prototype.salary = 2000;const fred = new employee("Fred Flintstone", "Caveman", 1970);document.getElementById("demo").innerHTML = fred.salary;</script></body></html>