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The new operator in JavaScript
The new operator is used for creating a user-defined object type instance of one of the builtin object types that has a constructor function.
Following is the code for new operator in JavaScript −
Example
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>Document</title> <style> body { font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif; } .result { font-size: 20px; font-weight: 500; color: blueviolet; } </style> </head> <body> <h1>New Operator in JavaScript</h1> <div class="result"></div> <br /> <button class="Btn">Click Here</button> <h3>Click on the above button to create the object person1 from Person constructor</h3> <script> let resEle = document.querySelector(".result"); let BtnEle = document.querySelector(".Btn"); function Person(name, age, designation) { this.name = name; this.age = age; this.designation = designation; } let person1 = new Person("Rohan Sharma", 19, "student"); BtnEle.addEventListener("click", () => { resEle.innerHTML = "person1.name = " + person1.name + "<br>"; resEle.innerHTML += "person1.age = " + person1.age + "<br>"; resEle.innerHTML += "person1.designation = " + person1.designation + "<br>"; }); </script> </body> </html> Output
On clicking the ‘Click Here’ button −
Updated on: 2020-07-18T08:01:26+05:30
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