reading innerHTML of HTML form with VALUE attribute (& its value) of INPUT tags

I have a html form with some input fields.

Instead of reading and sending the values of input fields by document.ipForm.userName.value , I need to send the whole html content to html parser and extract the <name ,value> pair of each input field by some other program( and other information too).

But when i did this in JavaScript(i want pure JavaScript- not other library)

var contents=document.getElementById("formArea").innerHTML;

It doesnot shows the value="enteredValue" of <input/> fields even if i entered some values.

My HTML File:

    <script type="text/javascript">
    function showInnerHtml(){
        var contents=document.getElementById("formArea").innerHTML;
    <div id="formArea">
        <form name="ipForm" >
          UserName : <input type="text" name="userName"> 
    <div> other contents.....   </div>
    <div onclick="showInnerHtml()">Show InnerHTML</div>

Am i missing something here or this is not possible.

Don't call me MAD. but i am struggling with this strange condition.



That's because value is a property when the textbox is filled in, not an attribute. This means that .value works fine, but it's not part of the actual DOM as an attribute (like <input value="...">).

You'd need to set it explicitly:

var elems = document.getElementsByName("ipForm")[0].getElementsByTagName("input");

for(var i = 0; i < elems.length; i++) {
    // set attribute to property value
    elems[i].setAttribute("value", elems[i].value);

You can also write an input which will change itself his attribute, like this :


UserName : <input type="text" name="userName" onChange="this.setAttribute('value', this.value);"> 

And for checkboxes :

onClick="if (this.checked) { this.setAttribute('checked', null); } else { this.removeAttribute('checked'); }"

Enjoy :)


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