Question

I am trying to create a general JS to
get the id and value from the input.
Then, put those into a JsonObject to pass back to the server.
The list is like this:

<ul id="myList" data-role="listview" data-inset="true">
    <li> Field One <input id="Field_One" /></li>
    <li> Field Two <input id="Field_Two" /></li>
    <li> Field Three <input id="Field_Three" /></li>
    <li> Field Four <input id="Field_Four" /></li>
</ul>

I could get the data for the listitem,

function Test(){
    var unorderedList = document.getElementById('myList'); 
    var ListItems = unorderedList.getElementsByTagName('li');  
    var listID

    for (var i = 0; i < ListItems.length; i++) {
        listID = ListItems[i].firstChild.data;
        //alert(listID);
    };  
}

but I couldn’t go further to get the text ID or value.
(well, if i have id then i can get value…).

How do I get the input id/value in the ul/il with a loop?

Answer 1

No one is saying the firstChild will be the input. In fact, it’s most probably a text node.

Give it a try:

function Test() {
    var unorderedList   = document.getElementById('myList'),
        ListItems       = unorderedList.getElementsByTagName('li');  

    for (var input, i = 0; i < ListItems.length; i++) {
        input = ListItems[i].getElementsByTagName('input')[0];
        console.log(input.id, input.value);
    }
}

Code Example