Analysis of jquery's method of obtaining the selected value of select_jquery

The example in this article describes how jquery obtains the selected value of select. Share it with everyone for your reference, the details are as follows:

Misunderstanding:

I used to think that jquery gets the text value of the selected option in the select, which is written like this:

Copy code The code is as follows:

$("#s").text(); //Get all options Text value

It should actually look like this:

Copy code The code is as follows:

$("#s option:selected").text(); //Get the text value of the selected option

Get the selected value of option in select:

$("#s").val();
$("#s option:selected").val();

js gets the value selected by select:

var sel=document.getElementById("select1");
var index = sel.selectedIndex; // 选中索引
albumid= sel.options[index].value;//要的值

I hope this article will be helpful to everyone in jQuery programming.