<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>getElementById and innerHTML</title>
<script>
window.onload = function () {
var main = document.getElementById('main');
main.innerHTML += "<p>This element was added dynamically.</p>";
console.log(main);
}
</script>
</head>
<body>
<h1>DOM Elements</h1>
<div id="main">
<p>Manipulating the DOM is fun!</p>
<p>Javascript can be used to manipulate the DOM</p>
</div>
</body>
</html>
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>Changing DOM Elements</title>
<style>
.blue {
color: blue;
font-weight: bold;
}
.red {
color: red;
font-weight: bold;
text-decoration: overline;
}
</style>
<script>
window.onload = function () {
var content = document.getElementById('main');
//content.setAttribute('class', 'blue');
//content.setAttribute('class', 'red');
content.style.backgroundColor = "yellow";
content.style.fontWeight = "bold";
content.style.borderBottom = "5px solid black"
}
</script>
</head>
<body>
<h1>DOM Elements</h1>
<div id="main">
<p>Manipulating the DOM is fun!</p>
<p>Javascript can be used to manipulate the DOM</p>
</div>
</body>
</html>
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>Adding and Deleting Elements</title>
<script>
window.onload = function () {
var theList = document.getElementById('myList');
var node = document.createElement("LI");
var text = document.createTextNode("Yes");
node.appendChild(text);
theList.appendChild(node);
var node2 = document.createElement("LI");
var text2 = document.createTextNode("Tower of Power");
node2.appendChild(text2);
theList.appendChild(node2);
/*
it's unclear why this works as it does
*/
// removes first LI tag
theList.removeChild(theList.childNodes[1]);
// removes nothing visible, more unseen nodes
theList.removeChild(theList.childNodes[2]);
// removes second LI tag
theList.removeChild(theList.childNodes[2]);
}
</script>
</head>
<body>
<ul id="myList">
<li>Journey</li>
<li>REO Speedwagon</li>
</ul>
</body>
</html>
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>Locating Elements</title>
<script>
window.onload = function () {
var result = document.getElementById('result');
// returns HTMLCollection
var elements = document.getElementsByTagName('p');
result.innerHTML = elements;
console.log(elements);
console.log(elements[0]);
var x = document.getElementsByClassName('last');
console.log(x);
console.log(x[0]);
}
</script>
</head>
<body>
<h1>DOM Elements</h1>
<div id="main">
<p>Manipulating the DOM is fun!</p>
<p>Javascript can be used to manipulate the DOM</p>
<p class="last">This is the third node!</p>
<div id="result"></div>
</div>
</body>
</html>