Learn how to copy text to the clipboard with JavaScript. Click on the button to copy the text from the text field.

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:

Oct 16, 2025 · Because in JavaScript, “copying an object” doesn’t always mean what you think it means. Look at this: Wait, what?! but both variables point to the same one. That’s because const b = a …

Dec 30, 2008 · Copying plain text to the clipboard is relatively simple, assuming you attempt to do it during a system copy event (user presses Ctrl + C or uses the browser's menu).

Sep 25, 2025 · It's possible to construct and dispatch a synthetic copy event, but this will not affect the system clipboard. This event bubbles up the DOM tree, eventually to Document and Window, is …

Nov 11, 2022 · When working with objects in JavaScript, you may sometimes want to change the value or add a new property to the object. In some scenarios, before you update or add new properties, …

A complete guide to copying objects in JavaScript: shallow copy, deep copy, assigning, merging, and structured cloning.

Jul 11, 2025 · The document.execCommand ("copy") method is commonly used to Copy the Text to the Clipboard, allowing developers to copy text programmatically, making it available for pasting elsewhere.

Oct 1, 2022 · To make a “real copy” (a clone) we can use Object.assign for the so-called “shallow copy” (nested objects are copied by reference) or a “deep cloning” function structuredClone or use a …

Learn modern ways to copy text to the clipboard in JavaScript using the Clipboard API and reliable fallbacks. Includes examples, tips, and cross-browser guidance.