Get input Element Value On Click Using JavaScript

In this tutorial we will see how to Get input Element Value On Click Using JavaScript. The onclick event is used with HTML Dom getElementsByTagName method for this.

HTML Code

HTML Code is given below, This code contains button element with onclick event and an input element.

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Get input Element Value On Click Using JavaScript</title>
</head>
<body>
<input type="text" value="HowToCodeSchool.com">    
<button onclick="getValue()">Get Value</button>
</body>
</html>

onclick Event

JavaScript Code is given below, In this code the onclick event is used to get the value of input element.

The onclick event occurs when an element is clicked, it is used to call a JavaScript function when click event is occurred.

HTML Dom getElementsByTagName method

The HTML Dom getElementsByTagName method returns the collection of element with the specified tag name.

In this code it is used to get the input element. After targeting the input element, .value method is used to get it's value.

JavaScript Code

Take a look at the code given below.

<script>
function getValue()
{
var id=document.getElementsByTagName("input")[0];
alert(id.value);
}
</script>

Video Tutorial

Watch video tutorial and demo on Get input Element Value On Click Using JavaScript.

Get input Element Value On Click 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 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 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