Common jquery operations _ jquery

Jquery's common operation methods include the release of many files, but they are different from each other. You can refer to the articles published before the release of the script. Operation drop-down list

Add Option List

$ (This). get (0). options. add (new Option (text, value ));

Clear list

$ (This). get (0). options. length = 0;

Option for deleting a specified index

$ (This). get (0). remove (index );

Set the value of the selected item

$ (This). get (0). value = value;

Obtain the text of the selected option

$ (This). get (0). options [index]. text;

Modify CSS in batches

((This).css ({left: "35px", top: "24px "})

Make the elements in the specified region unavailable (grayed out)

$ (This). find (*). each (function () {$ (this). attr ("disabled", true )});