jquery common operation methods_jquery

Operation drop-down list

Add option list

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

Clear the list

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

Remove the option at the specified index

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

Set the value of the item to be selected

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

Get the text of the currently selected option

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

Batch modify CSS

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

Make the elements in the specified area unusable (grayed out)

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