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JS 参考手册
JavaScript Object.create() 方法
tryjsref_object_met_create
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<!DOCTYPE html> <html> <body> <h1>JavaScript Objects</h1> <h2>The Object.create() Method</h2> <p>Create a new object from the prototype of another object.</p> <p id="demo"></p> <script> // Create an Object: const person = { firstName: "John", lastName: "Doe", language: "EN" }; // Create new Object const man = Object.create(person); man.firstName = "Peter"; // Display Properties document.getElementById("demo").innerHTML = person.firstName + " and " + man.firstName; </script> </body> </html>