在 JavaScript 中共享属性
可以通过将属性附加到对象的原型属性来共享属性。这些属性将在对象的全部实例中共享。
以下是 JavaScript 中共享属性的代码 −
示例
<!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>Shared properties in JavaScript</h1> <div class="result"></div> <button class="Btn">CLICK HERE</button> <h3>Click on the above button to the view properties of student1 and student2 objects</h3> <script> let resEle = document.querySelector(".result"); function Student(name, age) { this.name = name; this.age = age; } Student.prototype.school = "St Marks School"; let student1 = new Student("Rohan", 17); let student2 = new Student("Shawn", 16); document.querySelector(".Btn").addEventListener("click", () => { resEle.innerHTML = `${student1.name} age ${student1.age} : school :${student1.school} <br>`; resEle.innerHTML += `${student2.name} age ${student2.age} : school :${student2.school}`; }); </script> </body> </html>
输出
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