My code javascript not working. I want the functions work if will be over 500px width screen.
<ul>
<li class="dawid">Dawid</li>
<li class="piotrek">Piotr</li>
<li class="to">Tomek</li>
</ul>
AND JAVASCRIPT CODE- NOT WORKING
document.getElementById("dawid").addEventListener("click",displaytwo);
document.getElementById("piotrek").addEventListener("click",displayone);
function displaytwo(){
document.getElementById("piotrek").style.display='none';
document.getElementById("tomek").style.display='none';
}
function displayone(){
document.getElementById("dawid").style.display='none';
document.getElementById("tomek").style.display='none';
}
RESIZE NOT WORKING
function screen_resize(){
var w = parseInt(window.innerWidth);
if(w > 500)
{
displaytwo();
displayone();
}}
$(window).resize(function(e) {
screen_resize();
});
$(document).ready(function(e) {
screen_resize();
});
In order to use .getElementById
you need ids on your elements:
<ul>
<li class="da" id="dawid">Dawid</li>
<li class="pi" id="piotrek">Piotr</li>
<li class="to" id="piotrek">tomek</li>
</ul>
You need to declare IDs on your HTML elements, or else getElementByID() will not work.
<ul>
<li id="dawid" class="da">Dawid</li>
<li id="piotr" class="pi">Piotr</li>
<li id="tomek" class="to">Tomek</li>
</ul>
It looks like you are also using jQuery and already assigned them classes, so you could also use this code to grab DOM elements by class:
$(".da").click(displaytwo);
$(".pi").click(displayone);
function displaytwo(){
$(".piotrek").css('display','none');
$(".tomek").css('display','none');
}
function displayone(){
$(".dawid").css('display','none');
$(".tomek").css('display','none');
}
The ids are missing in your elements li
, add the IDs:
<li class="dawid" id="dawid">Dawid</li>
<li class="piotrek" id="piotrek">Piotr</li>
<li class="to" id="tomek">Tomek</li>
document.getElementById("dawid").addEventListener("click", displaytwo); document.getElementById("piotrek").addEventListener("click", displayone); function displaytwo() { document.getElementById("piotrek").style.display = 'none'; document.getElementById("tomek").style.display = 'none'; } function displayone() { document.getElementById("dawid").style.display = 'none'; document.getElementById("tomek").style.display = 'none'; } function screen_resize() { var w = parseInt(window.innerWidth); if (w > 500) { displaytwo(); displayone(); } } $(window).resize(function(e) { screen_resize(); }); $(document).ready(function(e) { screen_resize(); });
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <ul> <li class="dawid" id="dawid">Dawid</li> <li class="piotrek" id="piotrek">Piotr</li> <li class="to" id="tomek">Tomek</li> </ul>
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