Web Reference: Summary: in this tutorial, you will learn how to copy objects in JavaScript, including shallow copy and deep copy. To copy an object in JavaScript, you have three options: Apr 8, 2009 · There's a new JS standard called structured cloning. It works in many browsers (see Can I Use). To do this for any object in JavaScript will not be simple or straightforward. You will run into the problem of erroneously picking up attributes from the object's prototype that should be left in the prototype and not copied to the new instance. Jul 11, 2025 · This approach uses JSON.stringify () Method to clone a JavaScript Object. We are parsing the JSON.stringify () object to JSON.parse () so that it can be cloned to new empty object.
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