Jquery-modifying HTML Elements

Adding and removing HTML Elements

Dynamically adding elements to US HTML page is a powerful tool-it lets we modify not only the formatting, but the actual structure of our websites in response to a user ' s actions.

. Append () inserts the specified element as the last child of the target element. $ (". Info"). Append ("<p>Stuff!</p>");

. Prepend () inserts the specified elements as the first child of the target element. $ (". Info"). Prepend ("<p>Stuff!</p>");

. AppendTo () does the same as. Append (), $ (' <p>stuff!</p> '). AppendTo ('. Info ');

. Prepend () does the same as. Prepend ()

We can specify where in the DOM we insert a element with the . Before ( ) and . After () functions.

$ (' target '). After (' <tag>to add</tag> ');

var // existing elements // Move It // Same as:$ ("div"). After ($ ("P"));

Note:this does not copy the element from one location to another, it moves the original element effectively saving you fr Om has to delete the original

. Empty () deletes an element's content and all its descendants.

The . Remove () is deletes an element's content, but deletes the element itself.

modifying Classes and Content

. addclass () and. Removeclass () can used to add or remove a class from an element.

$ (' selector '). addclass (' className '); $ (' selector '). Removeclass (' ClassName ');

.toggleClass()Function that is does exactly this. If the element it ' s called on Have the class it receives as an input, .toggleClass() removes that class; if the target element doesn ' t has that class, .toggleClass() adds

$("div").css("background-color","#008800");  //change css style

. HTML () and. Val can update contents of our HTML elements.

$ (' div '). html ("I love jquery!");

. val () is used to get the value of from elements.

$ (' input:checkbox:checked '). Val ();

Jquery-modifying HTML Elements