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JavaScript One Solution

Ru Song
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Ru Song
Front End Web Development Techdegree Graduate 13,845 Points

ul tag name or ul class name

I was trying to add new item in ul with the code:

const newItem = document.createElement('li');

newItem.innerHTML = '<li><input>Hiking</li>';

ul.appendChild(newItem);

But it did not work. I dont know why I have to use list instead of ul to append a new item.

2 Answers

Dmitry Polyakov
Dmitry Polyakov
4,989 Points

You can't add children to a ul directly. You need to save a reference to it in a variable. With this line (const ul = document.getElementsByTagName("ul")[0];) you save all uls on your page into an array and reference the very first item of an array(using [0]).

const newItem = document.createElement('li');

const ul = document.getElementsByTagName("ul")[0];

newItem.innerHTML = '<li><input>Hiking</li>';

ul.appendChild(newItem);

Your last statement is not authorized. newItem.innerHTML simply let u set the text content inside the new created li item. You canโ€™t add anything to it.