In jQuery three very important and useful methods for DOM(Document Object Model) manipulations.

.text() – Sets or get the text content of selected elements.
.html() – Sets or get the content of selected elements (including HTML markup content).
.val() – Sets or get the value of all form fields(input,checkbox,radio,select,textarea).

Examples for text():

<span id=”test”>hello world</span>
var output= $(“#test”).text();
alert(output); //hello world

<span id=”test”>hello world</span>
var output= $(“#test”).text(“hello india”);
above jQuery code line will replace hello world to hello india.

Examples for html():

Examples for val():