主页
JS 参考手册
JavaScript Object.getOwnPropertyNames() 方法
tryjsref_object_getownpropnames
运行 ❯
×
更改方向
保存代码
更改主题
<!DOCTYPE html> <html> <body> <h1>JavaScript Objects</h1> <h2>The getOwnPropertyNames() Method</h2> <p>The Object.The getOwnPropertyNames() returns an array with the properties of an object.</p> <p id="demo"></p> <script> // Create an object: const person = { firstName: "John", lastName: "Doe", age: 50, eyeColor: "blue" }; // Get Properties let props = Object.getOwnPropertyNames(person); document.getElementById("demo").innerHTML = props[0]; </script> </body> </html>