appendChild Not Working

Question

HTML:

JavaScript:

function add(content){
   ul=document.getElementsByTagName(\"ul\")         


        

Answer 1

document.getElementsByTagName doesn't return a Element, but returns an Array of Elements.

You need to loop this array or get some unique Element.

Look this documentation: https://developer.mozilla.org/en/DOM/element.getElementsByTagName

// check the alignment on a number of cells in a table. 

var table = document.getElementById("forecast-table"); 
var cells = table.getElementsByTagName("td"); 
for (var i = 0; i < cells.length; i++) { 
    var status = cells[i].getAttribute("data-status"); 
    if ( status == "open" ) { 
        // grab the data 
    }
}