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How to disable submit button once it has been clicked with JavaScript?

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Sometimes, we want to disable submit button once it has been clicked with JavaScript.

In this article, we’ll look at how to disable submit button once it has been clicked with JavaScript.

How to disable submit button once it has been clicked with JavaScript?

To disable submit button once it has been clicked with JavaScript, we set its disabled property to true.

For instance, we write

<form action="/" method="POST">
  <input name="txt" type="text" required />
  <button id="btn" type="submit">Post</button>
</form>

to add a form.

Then we write

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

form.onsubmit = () => {
  const btn = document.getElementById("btn");
  btn.disabled = true;
  btn.innerText = "Posting...";
};

to select the form with querySelector.

Then we set its onsubmit property to a function that disables the button when we click the Post button.

In it, we select the button with getElementById.

Then we set its disabled property to true to disable the button.

Conclusion

To disable submit button once it has been clicked with JavaScript, we set its disabled property to true.

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