Display Message When File Is Selected Using JavaScript

In this tutorial we will see how to Display Message When File Is Selected Using JavaScript. The onchange Event is used with innerText Property and getElementById() Method.


HTML Code is given below, This code contains an input element and a paragraph element.

<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
<title>Display Message When File Is Selected Using JavaScript</title> 
 <input type="file" id='file' onchange="myFile()">
 <p id='out'></p>

onchange Event

The onchange Event is a DOM event which occurs when the value of an element is changed.

In this example when the file is selected, the value of input element is changed and it fires the change event which will execute our main function.

It is supported by all major browsers.

getElementById() Method

The getElementById() Method is used to get or select or target the HTML element with a specified value of Id attribute.

In this example the id of input element is 'out'. This id is used to target the input element.

It is also supported by all major browsers.

innerText Property

The innerText Property is used to set or get the text content of the html element.

In this example the innerText property is used to set the text content of paragraph element to display the message that file has been selected.

It is also supported by all major browsers.

JavaScript Code

In this example, the myFile() function is executed when the file is selected.

Take a look at the code given below.

function myFile()
 document.getElementById('out').innerText="File has been Selected!";


Video Tutorial

Watch video tutorial on how to Display Message When File Is Selected Using JavaScript.

Change font-size using JavaScript Get Font Size of any Tag using JavaScript Change Position of HTML Element using JavaScript How to Change Image on Hover with JavaScript How to Disable Button by Class Name in JavaScript How To Change Image Size with JavaScript How to change Image opacity with JavaScript How to Change image src on click with JavaScript How to get the lang attribute value in JavaScript How to Get attribute Value using JavaScript How To Check if Attribute Exists or not with JavaScript How To Count number of links on Page with JavaScript How To Scroll Page to Bottom using JavaScript How To Detect Shift Key Press with JavaScript Change Text Color On Hover with JavaScript Hide and Show div using JavaScript Get Button text with JavaScript Get textarea value with JavaScript Get table row Height with JavaScript Auto Increase width of input field with JavaScript Set Textarea maxLength with JavaScript Set Textarea Value with JavaScript JavaScript Count list items JavaScript set input field value Count Button Clicks with JavaScript Scroll Page to the Top on Click with JavaScript