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Creating JavaScript constructor using the “new” operator?
Following is the code for creating a JavaScript constructor using the ‘new’ operator −
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; } </style> </head> <body> <h1>JavaScript constructor using new</h1> <div style="color: green;" class="result"></div> <button class="Btn">CLICK HERE</button> <h3>Click on the above button to create JavaScript constructor using new operator</h3> <script> let resEle = document.querySelector(".result"); function Human(firstName,lastName,age){ this.firstName = firstName; this.lastName = lastName; this.age = age; } let obj = new Human('Rohan','Sharma',22); document.querySelector(".Btn").addEventListener("click", () => { for(i in obj){ resEle.innerHTML += 'Key = ' + i + ' : Value = ' + obj[i] + '<br>' } }); </script> </body> </html> Output
The above code will produce the following output −
On clicking the ‘CLICK HERE’ button −
Updated on: 2020-07-16T07:07:23+05:30
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