How to create new div dynamically, change it, move it, modify it in every way possible, in JavaScript?
JavascriptDomJavascript Problem Overview
I want to create new divs as the page loads. These divs will appear as an ordered group which changes depending upon external data from a JSON file. I will need to do this with a for loop because there are over 100 divs needed.
So, I need to be able to change each created div in regards to height, width, top/left and so on. Yet, document.getElementById("created_div").style.whatever
does nothing, I can't even see a single new div appear. I've set the new divs height/width to 500px, background to "red", and so on, but no new divs are definitely appearing.
What am I doing wrong?
Javascript Solutions
Solution 1 - Javascript
- Creation
var div = document.createElement('div');
- Addition
document.body.appendChild(div);
- Style manipulation
- Positioning
div.style.left = '32px';
div.style.top = '-16px';
- Classes
div.className = 'ui-modal';
- Modification
- ID
div.id = 'test';
- contents (using HTML)
div.innerHTML = '<span class="msg">Hello world.</span>';
- contents (using text)
div.textContent = 'Hello world.';
- Removal
div.parentNode.removeChild(div);
- Accessing
- by ID
div = document.getElementById('test');
- by tags
array = document.getElementsByTagName('div');
- by class
array = document.getElementsByClassName('ui-modal');
- by CSS selector (single)
div = document.querySelector('div #test .ui-modal');
- by CSS selector (multi)
array = document.querySelectorAll('div');
- Relations (text nodes included)
- children
node = div.childNodes[i];
- sibling
node = div.nextSibling;
- Relations (HTML elements only)
- children
element = div.children[i];
- sibling
element = div.nextElementSibling;
This covers the basics of DOM manipulation. Remember, element addition to the body or a body-contained node is required for the newly created node to be visible within the document.
Solution 2 - Javascript
Have you tried JQuery? Vanilla javascript can be tough. Try using this:
$('.container-element').add('<div>Insert Div Content</div>');
.container-element
is a JQuery selector that marks the element with the class "container-element" (presumably the parent element in which you want to insert your divs). Then the add()
function inserts HTML into the container-element.