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jquery method to get selected text and value_jquery

WBOYOriginal: 2016-05-16 16:42:061265browse

1. Description

(1) Get the index selected by the select drop-down box

$("#selection").get(0).selectedIndex;

(2) Get the selected value of the select drop-down box

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

(3) Get the text selected in the select drop-down box

$("#selection option:selected").text();

2. Implement source code

html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<HTML xmlns="http://www.w3.org/1999/xhtml"> 
<HEAD> 

<script type="text/javascript" src="../Documents/未命名站点 2/jquery-1.11.0.js"></script> 
<script type="text/javascript"> 
$(function(){ 
$("#btn").click(function(){ 
//获取select下拉框索引 
var index = $("#selection").get(0).selectedIndex; 
//获取select下拉框的值 
var selectVal = $("#selection option:selected").val(); 
//获取select下拉框的文本 
var selectText = $("#selection option:selected").text(); 
alert("获取select下拉框索引：" + index + "\n" + "获取select下拉框的值：" + selectVal + "\n" + "获取select下拉框的文本：" + selectText); 
}); 
}); 
</script> 

<DIV id=select_val> 
<SELECT id=selection> <OPTION selected value=0>鲤鱼</OPTION> <OPTION value=1>鳐鱼</OPTION> <OPTION value=2>鲶鱼</OPTION> <OPTION value=3>棒棒鱼</OPTION> <OPTION value=4>小姐鱼</OPTION> <OPTION value=5>红金花罗汉鱼</OPTION> <OPTION value=6>彩虹王罗汉鱼</OPTION> <OPTION value=7>泰金罗汉鱼</OPTION></SELECT> 
</DIV> 
<INPUT id=btn value=获取选中的文本和值 type=button>

3. Realize results

(1) Select the first item

(2) Select the last item

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