how to check if input is empty javascript?

how to check if input is empty javascript – Check whether an input text box is empty with JavaScript/jQuery. This article will discuss how to check whether an input text box is empty in JavaScript and jQuery.

how to check if input is empty javascript

Using JavaScript

$(document).ready(function() {
    $('#submit').click(function() {
        var value = document.getElementById('name').value;
        if (value === '') {
            alert('Enter your name');
        }
    })
});

javascript check if input is empty

if input value is null do something

if(document.getElementById("interview_no").value.length == 0)
{
    alert("empty")
}

Javascript function to check whether a field is empty or not

   function required(inputtx) 
   {
     if (inputtx.value.length == 0)
      { 
         alert("message");  	
         return false; 
      }  	
      return true; 
    } 

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How to Check If an Input Field is Empty Using jQuery?

Use the jQuery val() Method

    

        
First Name: 
        
Last Name: 
        
Email Address: 
    

I hope you get an idea about how to check if input is empty javascript.
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