FileList: length property

Note: This feature is available in Web Workers.

The length read-only property of the FileList interface returns the number of files in the FileList.

Value

A number indicating the number of files in the list.

Examples

undefined

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