jquery operations a method for the text value and value of the Select Drop-down box _jquery

1. jquery Gets the text value of the currently selected select

var checktext=$ ("#slc1"). Find ("option:selected"). Text ();

2. jquery gets the value value of the currently selected select

var checkvalue=$ ("#slc1"). Val ();

3. jquery Gets the index value of the currently selected select

var index=$ ("#slc1"). Get (0). SelectedIndex;

4, jquery set an index value of 1 is the current selected item

$ ("#slc1"). Get (0). selectedindex=1;

5, jquery set the value of value 2 is the current selected item

$ ("#slc1"). Val (2);

6. jquery sets the item with the text value "Green rattan garden" as the current selected item

$ ("#slc1 option[text= ' green garden w ']"). attr ("selected", true);

7. Append an option to the specified select Drop-down box (append to end)

$ ("#slc2"). Append ("+i+");

8. Insert an option for the Select Drop-down box (insert to first position)

$ ("#slc2"). Prepend ("Please choose");

9. jquery Delete the last option in the Select Drop-down box

$ ("#slc2 option:last"). Remove ();