Jquery $ (this). attr $ (this). val Method Introduction _ jquery-js tutorial

$ (This ). attr (key); obtains the value of the node attribute name, which is equivalent to the getAttribute (key) method. this article provides some examples. For more information, see $ (this ). attr (key); obtains the value of the node attribute name, which is equivalent to the getAttribute (key) method.

$ (This). attr (key, value); sets the value of the node attribute, which is equivalent to the setAttribute (key, value) method.

Eg:

Var diywidgetid = $ ('# w_1'). attr ('didwidgetid'); // obtain the node Attribute Value

$ (This). val (); get the value of an element node, equivalent to $ (this). attr ("value ");

$ (This). val (value); set the value of an element node, equivalent to $ (this). attr ("value", value );

Eg:

Var I _eg = $ ('# I _eg'). val (); // obtain the value of an element node.