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How to Copy a Text String on Click with JavaScript?

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Sometimes, we want to copy a text string on click with JavaScript.

In this article, we’ll look at how to copy a text string on click with JavaScript.

Copy a Text String on Click with JavaScript

To copy a text string on click with JavaScript, we can call the document.execuCommand to copy the text to the clipboard.

Then we can listen to the copy event to get the copied text.

For instance, if we have:

<span>hello world</span>

Then we write:

const span = document.querySelector("span");

span.onclick = () => {
  document.execCommand("copy");
}

span.addEventListener("copy", (event) => {
  event.preventDefault();
  if (event.clipboardData) {
    event.clipboardData.setData("text/plain", span.textContent);
    console.log(event.clipboardData.getData("text"))
  }
});

We select the span element with document.querySelector.

Then we set the span.onclick property to a function that calls document.execCommand with 'copy' to copy the text content of the span.

Next, we call span.addEventListener with 'copy' to add a copy event listener.

The callback will run when we run document.execCommand("copy");.

We get the clipboard data with the event.clipboardData.setData to set the copied data to the textContent of the span.

And then we can get the text data that’s copied to the clipboatd with the getData method with 'text'.

Conclusion

To copy a text string on click with JavaScript, we can call the document.execuCommand to copy the text to the clipboard.

Then we can listen to the copy event to get the copied text.

By John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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