MDN Web Docs

Value

A number indicating the number of files in the list.

Examples

Printing the number of files selected

In this example, we use length to find the number of items in the FileList.

HTML

html

<input type="file" multiple />
<div class="output"></div>

JavaScript

js

const fileInput = document.querySelector("input[type=file]");
const output = document.querySelector(".output");
fileInput.addEventListener("change", () => {
  const fileList = fileInput.files;
  output.textContent = `You've selected: ${fileList.length} file(s)`;
});

Result

Specifications

Specification
File API
# dfn-length

Browser compatibility

Help improve MDN

Yes No

Learn how to contribute

This page was last modified on by MDN contributors.

Read the original on developer.mozilla.org ↗