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

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

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

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.

<script>
function myFile()
 {
 document.getElementById('out').innerText="File has been Selected!";
 }
</script>

Video Tutorial

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

Count Number of Rows in Table using JavaScript Move Background Image with Mouse Using JavaScript Disable Text Selection Using JavaScript Get Selected Radio Button Value On Click using JavaScript Get input Element Value On Click Using JavaScript Get Class of Clicked Element Using JavaScript Toggle Text of HTML Element with JavaScript onclick Call Multiple Functions on one click using JavaScript onclick Check UnCheck all Checkboxes with JavaScript Open Select File Dialog Box Using JavaScript Display Message When File Is Selected Using JavaScript Get Current Page URL using JavaScript Get ID of Clicked Element using JavaScript How To Delay JavaScript Function Call Change Background Color onclick using JavaScript Get Clicked HTML Element Name Using JavaScript Delete HTML Element using JavaScript Change HTML Attribute Value using JavaScript Show and Hide Element On Click Using JavaScript Passing JavaScript Value from one Page to another T-Rex Run Game Hacked - Hack T Rex Run Game How To Use JavaScript Function as Variable Display Current Date and Time Using HTML and JAVASCRIPT Get Unicode Value of Pressed Keyboard Key using JavaScript Detect Enter Key Press Using JavaScript Hide and Show Element on Enter Key Press Get Mouse Cursor Position in Pixels using JavaScript Open Link in New Window using JavaScript Open Link in New Tab using JavaScript Get Image Width and Height using JavaScript Remove Last Digit of Number using JavaScript Bitwise OR Simple JavaScript Calculator Using Vanilla JavaScript Disable Right Click on Website Using JavaScript How To Add Line Breaks in JavaScript Alert Box