I have tried many options, but this what I have so far and it doesnt work.

document.querySelectorAll('ul li').querySelectorAll('ul li').style.background = color;

document.getElementsByTagName("NAV").getElementsByTagName("UL").getElementsByTagName("LI").getElementsByTagName("UL").getElementsByTagName("LI").style.background = color;

my html

<nav>
    <ul id = "mainNav">
        <li><center>
            <img id = "logo" src = ".png"></center>
        </li>
        <li id = "search">

            <form name = "searchField">
                <img src = ".png"><input name = "search" type = "text" placeHolder = "" id = "search">
            </form>

        </li>
        <li><a href ="#">
            <img src = ".png" alt = "img/home.png">HOME</a>
        </li>
        <li><a href ="#">
            <img src = ".png" alt = "img/info.png">ABOUT</a>
        </li>
        <li id = "section"><a href ="#">
            <img src = ".png"alt = "img/camera.png">PHOTOGRAPHY</a>
            <ul>
                <li><a href = "/photography">San Francisco</a></li>
                <li><a href = "#">Lake Tahoe</a></li>
            </ul>
        </li>
        <li id = "section"><a href ="#">
            <img src = ".png"alt = "img/projects.png">PROJECTS</a>
            <ul>
                <li><a href = "/projects#informative">Informative</a></li>
                <li><a href = "/projects#profile">Profile</a></li>
            </ul>
        </li>
        <li id = "section"><a href ="#">
            <img src = ".png"alt = "img/contact.png">CONTACT</a>

            <ul>
                <li><a href = "" target =" _blank">Twitter</a></li>
                <li><a href = "" target =" _blank">Instagram</a></li>
                <li><a href="mailto:[email protected]" target="_top">Email</a></li>
            </ul>
        </li>
    </ul>
</nav>
            <nav>
                <ul id = "viewNav">
                    <a href = "#"><li> Some things here</li></a>
                </ul>
            </nav>

Does anyone have an idea how to select nav ul li ul li with javascript?

P.S. I havent learned jquery. So I want to do it with pure javascript.

I have tried many options, but this what I have so far and it doesnt work.

document.querySelectorAll('ul li').querySelectorAll('ul li').style.background = color;

document.getElementsByTagName("NAV").getElementsByTagName("UL").getElementsByTagName("LI").getElementsByTagName("UL").getElementsByTagName("LI").style.background = color;

my html

<nav>
    <ul id = "mainNav">
        <li><center>
            <img id = "logo" src = "https://31.media.tumblr./cfc2c43f7e34ec3fcb60405fa5d4f5a5/tumblr_n9nvpjtNNW1tgkx81o1_1280.png"></center>
        </li>
        <li id = "search">

            <form name = "searchField">
                <img src = "http://31.media.tumblr./7732f8901e9c94cb94aa5cff9e11b2ae/tumblr_n8zm5cD1SL1tgkx81o1_1280.png"><input name = "search" type = "text" placeHolder = "" id = "search">
            </form>

        </li>
        <li><a href ="#">
            <img src = "https://38.media.tumblr./f319cbdb3a9bd4041fd2c6056827794b/tumblr_n9lpsfYFOB1tgkx81o3_1280.png" alt = "img/home.png">HOME</a>
        </li>
        <li><a href ="#">
            <img src = "https://31.media.tumblr./1dc400960f59fca2f738ceab516d24f4/tumblr_n9lpsfYFOB1tgkx81o4_1280.png" alt = "img/info.png">ABOUT</a>
        </li>
        <li id = "section"><a href ="#">
            <img src = "https://38.media.tumblr./11cb610a9c031eaf5bb8789cb9739717/tumblr_n9lpsfYFOB1tgkx81o1_1280.png"alt = "img/camera.png">PHOTOGRAPHY</a>
            <ul>
                <li><a href = "/photography">San Francisco</a></li>
                <li><a href = "#">Lake Tahoe</a></li>
            </ul>
        </li>
        <li id = "section"><a href ="#">
            <img src = "https://31.media.tumblr./bd112082d5c902750e78aa9d7dd817fc/tumblr_n9lpsfYFOB1tgkx81o5_1280.png"alt = "img/projects.png">PROJECTS</a>
            <ul>
                <li><a href = "/projects#informative">Informative</a></li>
                <li><a href = "/projects#profile">Profile</a></li>
            </ul>
        </li>
        <li id = "section"><a href ="#">
            <img src = "https://33.media.tumblr./e9a7f9ae946bdf2950be96f27023bb78/tumblr_n9lpsfYFOB1tgkx81o2_1280.png"alt = "img/contact.png">CONTACT</a>

            <ul>
                <li><a href = "http://www.twitter./skarchmit" target =" _blank">Twitter</a></li>
                <li><a href = "http://www.instagram./skarchmit" target =" _blank">Instagram</a></li>
                <li><a href="mailto:[email protected]" target="_top">Email</a></li>
            </ul>
        </li>
    </ul>
</nav>
            <nav>
                <ul id = "viewNav">
                    <a href = "#"><li> Some things here</li></a>
                </ul>
            </nav>

Does anyone have an idea how to select nav ul li ul li with javascript?

P.S. I havent learned jquery. So I want to do it with pure javascript.

• javascript
• html
• css

• 2 What does your HTML look like? – j08691 Commented Aug 13, 2014 at 21:20
• I want to affect multiple navs. – Happy Commented Aug 13, 2014 at 21:21

4 Answers 4

"how to select nav ul li ul li with javascript"

Do you mean this?

document.querySelectorAll('nav > ul > li > ul > li');

Note that you can remove the direct children condition > where it suits you.

Also note that querySelectorAll returns a collection (non-live NodeList) so you must iterate over it to manipulate every elements.

   var nestedLis = document.querySelectorAll('nav > ul > li > ul > li'),
       i = 0,
       len = nestedLis.length;

   for (; i < len; i++) nestedLis[i].style.backgroundColor = 'red';

Since most array functions can manipulate array-like objects, you can also apply [].forEach to the node list.

[].forEach.call(nestedLis, function (li) {
    //manipulate li
});

QuerySelectorAll return a NodeList of objects, even if there is only one.
So you need to give the element position in the NodeList like so

document.querySelectorAll('ul li')[0]

For the first element.

If you need to go trough all the elements, you'll need a loop like so

var elems = document.querySelectorAll('ul li');

for (var i=0; i<elems.length; i++) {
    elems[i].style.background = color;
}

This should work

document.querySelectorAll('NAV ul li ul li')

Just for the sake of including the jQuery solution..

$('nav ul li ul li')

or add a class to your sub menus like #myID and target

$('#myID li')