How to Retrieve the Value of a Text Input Field Using JavaScript?

How to Get Value of Text Input Field Using JavaScript

You can obtain the value of a text input field in JavaScript using these methods:

Method 1: getElementById

document.getElementById('input_id').value;

Method 2: getElementsByClassName

document.getElementsByClassName('class_name')[0].value;

Method 3: getElementsByTagName

document.getElementsByTagName('input')[0].value;

Method 4: getElementsByName

document.getElementsByName('input_name')[0].value;

Method 5: querySelector

By ID:

document.querySelector('#input_id').value;

By Class:

document.querySelector('.class_name').value;

By Tag Name:

document.querySelector('input').value;

Method 6: querySelectorAll

Similar to querySelector, but returns a static NodeList:

By ID:

document.querySelectorAll('#input_id')[0].value;

By Class:

document.querySelectorAll('.class_name')[0].value;

By Tag Name:

document.querySelectorAll('input')[0].value;

Example in Your Code

To get the value of the search text input field in your code, use:

const searchTxtValue = document.getElementById('searchTxt').value;

Browser Support

Browser	Method 1	Method 2	Method 3	Method 4	Method 5/6
IE6	Y (Buggy)	N	Y	Y (Buggy)	N
IE7	Y (Buggy)	N	Y	Y (Buggy)	N
IE8	Y	N	Y	Y (Buggy)	Y
IE9	Y	Y	Y	Y (Buggy)	Y
IE10	Y	Y	Y	Y	Y
FF3.0	Y	Y	Y	Y	N
FF3.5/FF3.6	Y	Y	Y	Y	Y
FF4b1	Y	Y	Y	Y	Y
GC4/GC5	Y	Y	Y	Y	Y
Safari4/Safari5	Y	Y	Y	Y	Y
Opera10.10/
Opera10.53/	Y	Y	Y	Y (Buggy)	Y
Opera10.60
Opera 12	Y	Y	Y	Y	Y

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