How to auto-submit an upload form when a file is selected with JavaScript?

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Sometimes, we want to auto-submit an upload form when a file is selected with JavaScript.

In this article, we’ll look at how to auto-submit an upload form when a file is selected with JavaScript.

How to auto-submit an upload form when a file is selected with JavaScript?

To auto-submit an upload form when a file is selected with JavaScript, we call submit on the form when a file is selected.

For instance, we write

document.getElementById("file").onchange = () => {
  document.getElementById("form").submit();
};

to select the file input with document.getElementById("file").

Then we set its onchange property to a function that calls submit to submit the form`.

Conclusion

To auto-submit an upload form when a file is selected with JavaScript, we call submit on the form when a file is selected.

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