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The clipboard npm package is a simple interface for copying text to the clipboard. It does not rely on Flash and is typically used in web applications to enhance the user experience by providing copy-to-clipboard functionality with minimal effort.
Copy text from a trigger element
This code binds a new ClipboardJS instance to elements with the class 'btn'. When these elements are clicked, the text target they are associated with is copied to the clipboard.
new ClipboardJS('.btn');
Copy text programmatically
This code allows you to define a function that returns the text to be copied when the trigger element is activated.
const clipboard = new ClipboardJS('.btn', { text: function(trigger) { return 'Text to copy'; } });
Cut text from an input
This code sets up the clipboard instance to cut text from an input field when the trigger element is used.
new ClipboardJS('.btn', { action: function(trigger) { return 'cut'; } });
Customize via data attributes
This HTML markup shows how to use data attributes to specify the text to be copied when the button is clicked.
<button class='btn' data-clipboard-text='Text to copy'>Copy</button>
Event handling
This code adds an event listener for the 'success' event, which is fired when text is successfully copied to the clipboard. It logs information about the event and clears the selection.
clipboard.on('success', function(e) { console.info('Action:', e.action); console.info('Text:', e.text); console.info('Trigger:', e.trigger); e.clearSelection(); });
copy-to-clipboard is a module that provides a simple API to copy text to the clipboard. It does not have a dependency on Flash and works in modern browsers. It is similar to clipboard but offers a more straightforward, function-based approach.
clipboardy is a Node.js module for copying and pasting text to and from the clipboard. It works in both desktop and server environments, unlike clipboard which is primarily for the browser. clipboardy provides more comprehensive clipboard interactions, including reading from the clipboard.
clipboard-polyfill is a package that provides a polyfill for the Clipboard API. It aims to mimic the modern Clipboard API in browsers that do not support it fully. It is similar to clipboard in that it enables copy operations but also attempts to provide a consistent API across different browsers.
Modern copy to clipboard. No Flash. Just 2kb
Copying text to the clipboard shouldn't be hard. It shouldn't require dozens of steps to configure or hundreds of KBs to load. But most of all, it shouldn't depend on Flash or any bloated framework.
That's why clipboard.js exists.
You can get it on npm.
npm install clipboard --save
Or bower, too.
bower install clipboard --save
If you're not into package management, just download a ZIP file.
First, include the script located on the dist
folder
<script src="dist/clipboard.min.js"></script>
Now, you need to instantiate it using a DOM selector. This selector corresponds to the trigger element(s), for example <button class="btn">
.
new Clipboard('.btn');
Internally, we need to fetch all elements that matches with your selector and attach event listeners for each one. But guess what? If you have hundreds of matches, this operation can consume a lot of memory.
For this reason we use event delegation which replaces multiple event listeners with just a single listener. After all, #perfmatters.
We're living a declarative renaissance, that's why we decided to take advantage of HTML5 data attributes for better usability.
A pretty common use case is to copy content from another element. You can do that by adding a data-clipboard-target
attribute in your trigger element.
The value you include on this attribute needs to match another's element selector.
<!-- Target -->
<input id="foo" value="https://github.com/zenorocha/clipboard.js.git">
<!-- Trigger -->
<button class="btn" data-clipboard-target="#foo">
<img src="assets/clippy.svg" alt="Copy to clipboard">
</button>
Additionally, you can define a data-clipboard-action
attribute to specify if you want to either copy
or cut
content.
If you omit this attribute, copy
will be used by default.
<!-- Target -->
<textarea id="bar">Mussum ipsum cacilds...</textarea>
<!-- Trigger -->
<button class="btn" data-clipboard-action="cut" data-clipboard-target="#bar">
Cut to clipboard
</button>
As you may expect, the cut
action only works on <input>
or <textarea>
elements.
Truth is, you don't even need another element to copy its content from. You can just include a data-clipboard-text
attribute in your trigger element.
<!-- Trigger -->
<button class="btn" data-clipboard-text="Just because you can doesn't mean you should — clipboard.js">
Copy to clipboard
</button>
If you don't want to modify your HTML, there's a pretty handy imperative API for you to use. All you need to do is declare a function, do your thing, and return a value.
For instance, if you want to dynamically set a target
, you'll need to return a Node.
new Clipboard('.btn', {
target: function(trigger) {
return trigger.nextElementSibling;
}
});
If you want to dynamically set a text
, you'll return a String.
new Clipboard('.btn', {
text: function(trigger) {
return trigger.getAttribute('aria-label');
}
});
There are cases where you'd like to show some user feedback or capture what has been selected after a copy/cut operation.
That's why we fire custom events such as success
and error
for you to listen and implement your custom logic.
var clipboard = new Clipboard('.btn');
clipboard.on('success', function(e) {
console.info('Action:', e.action);
console.info('Text:', e.text);
console.info('Trigger:', e.trigger);
e.clearSelection();
});
clipboard.on('error', function(e) {
console.error('Action:', e.action);
console.error('Trigger:', e.trigger);
});
For a live demonstration, open this site and just your console :)
This library relies on both Selection and execCommand APIs. The second one is supported in the following browsers.
42+ ✔ | 41+ ✔ | 9+ ✔ | 29+ ✔ | Nope ✘ |
Although copy/cut operations with execCommand aren't supported on Safari yet (including mobile), it gracefully degrades because Selection is supported.
That means you can show a tooltip saying Copied!
when success
event is called and Press Ctrl+C to copy
when error
event is called because the text is already selected.
For a live demonstration, open this site on Safari.
MIT License © Zeno Rocha
FAQs
Modern copy to clipboard. No Flash. Just 2kb
The npm package clipboard receives a total of 1,447,263 weekly downloads. As such, clipboard popularity was classified as popular.
We found that clipboard demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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