JQuery HTML () and other methods introduced _jquery

For getting the value of an element, such as an input box, we tend to use $ (' #test '). Val ();

$ (' #test ') I'm not going to say that, anyway, get this element with the ID test.

$ (' #test '). Val (), that is, to get its value, in general, any element that can be used in a form can use. val () to get the value, such as Input,textarea,select, to get their current value

and. Val (' AA '); Sets the value of the element, $ (' #test '). Val (' AA '), which is equivalent to setting the test element to a value of AA.

There are two other types of usage:. HTML (),. Text (), which is often used on div and span elements, and is typically assigned and evaluated for both elements.

The. HTML () replaces the previous. InnerHTML,. html (' test '), instead. InnerHTML = ' Test ';

These similar simplifications allow us to feel more fluid in the actual operation.

All of these methods are assigned and evaluated directly in the method name Riga parameters. Some of the values are taken by the second parameter (not quite clear ...). , such as $ (' #test '). attr (' name '), the value returned is the name in its attribute, if $ (' #test '). attr (' id ', ' test2 '), is equivalent to setting the name of the test element to test2 and then taking the value, name is Test2.

It's too messy ....