jQuery Get

jQuery - Get Content and Attributes

---

jQuery contains powerful methods for changing and manipulating HTML elements and attributes.

---

jQuery DOM Manipulation

One very important part of jQuery is the possibility to manipulate the DOM.
jQuery comes with a bunch of DOM related methods that make it easy to access and manipulate elements and attributes.

DOM = Document Object Model

The DOM defines a standard for accessing HTML and XML documents:

"The W3C Document Object Model (DOM) is a platform and language-neutral interface that allows programs and scripts to dynamically access and update the content, structure, and style of a document."

---

Get Content - text(), html(), and val()

Three simple, but useful, jQuery methods for DOM manipulation are:

• text() - Sets or returns the text content of selected elements
• html() - Sets or returns the content of selected elements (including HTML markup)
• val() - Sets or returns the value of form fields

The following example demonstrates how to get content with the jQuery text() and html() methods:

Example

$("#btn1").click(function(){
    alert("Text: " + $("#test").text());
});
$("#btn2").click(function(){
    alert("HTML: " + $("#test").html());
});

The following example demonstrates how to get the value of an input field with the jQuery val() method:

Example

$("#btn1").click(function(){
    alert("Value: " + $("#test").val());
});

---

Get Attributes - attr()

The jQuery attr() method is used to get attribute values.
The following example demonstrates how to get the value of the href attribute in a link:

Example

$("button").click(function(){
    alert($("#w3s").attr("href"));
});

The next chapter explains how to set (change) content and attribute values.

---