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如何在html5實(shí)現(xiàn)datalist選中option選項(xiàng)的觸發(fā)事件？代碼詳解快速上手！

月亮醉酒到處跑 2021-08-19 14:44:14 瀏覽數(shù) (5548)
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對(duì)于html5使用相信很多小伙伴們都知道了怎么實(shí)現(xiàn)，接下來(lái)我們來(lái)說(shuō)說(shuō)有關(guān)于：“如何在html5實(shí)現(xiàn)datalist選中option選項(xiàng)的觸發(fā)事件？”這方面的相關(guān)內(nèi)容分享！

代碼如下：

<!DOCTYPE HTML>
<html>
<body>
<script src="./jquery-1.7.2.min.js" type="text/javascript" charset="utf-8"></script>
<script>
function inputSelect(){
 var input_select=$("#input").val();
 var option_length=$("option").length;
 var option_id='';
 for(var i=0;i<option_length;i++){
  var option_value=$("option").eq(i).attr('data-value');
  if(input_select==option_value){
   option_id=$("option").eq(i).attr('data-id');
   break;
  }
 }
 console.log(input_select,option_length,option_id);
};
</script>
<input list="cars"  id="input" οnchange="inputSelect()"/>
<datalist id="cars">
 <option value="111" data-value="111"  data-id="1">
 <option value="122"  data-value="122" data-id="2">
 <option value="1222" data-value="1222" data-id="4">
</datalist>
</body>
</html>

html5中datalist, 對(duì)選擇的option選項(xiàng)獲取對(duì)應(yīng)的屬性值：

 <!DOCTYPE HTML>
<html>
<body>
<script src="jquery-1.12.4.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
function inputSelect(){
    var input_select = $("#input").val();
    var after_value = input_select.split(".");
    var new_value = after_value[0] + "." + after_value[1] + "." + after_value[2] + ".xxx";
    $("#input").val(new_value);
    var option_length = $("#netsegments").find("option").length;
    var data_id = '';
    var firstIp = 1;
    var lastIp = 255;
    for(var i = 0; i < option_length; i++){
        var option_value = $("option").eq(i).attr('data-value');
        if(input_select == option_value){
            data_id = $("option").eq(i).attr('data-id');
            firstIp = $("option").eq(i).attr('firstIp');
            lastIp = $("option").eq(i).attr('lastIp');
            break;
        }
    }
    console.log("input_select:" + input_select + ",option_length:" + option_length);
    console.log("data_id:" + data_id + ",firstIp:" + firstIp + ",lastIp:" + lastIp);
};</script>
<input list="netsegments" id="input" onchange="inputSelect()" placeholder="xxx.xxx.xxx.xxx" />
<datalist id="netsegments">
    <option label="10.0.23.xxx" value="10.0.23.1~62" data-value="10.0.23.1~62"  data-id="1" firstIp="1" lastIp="62" />
    <option label="10.0.23.xxx" value="10.0.23.64~127"  data-value="10.0.23.64~127" data-id="2" firstIp="63" lastIp="127" />
    <option label="10.0.23.xxx" value="10.0.23.129~192" data-value="10.0.23.129~192" data-id="3" firstIp="129" lastIp="192" />
</datalist>
</body>
</html>

<!-- 選擇option的value, 顯示在input里, 然后獲取對(duì)應(yīng)的屬性data-id, firstIp, lastIp -->
測(cè)試結(jié)果如下:
當(dāng)選擇第二個(gè)選項(xiàng)時(shí)候, console打印出結(jié)果:
  input_select:10.0.23.64~127,option_length:3
  data_id:2,firstIp:63,lastIp:127

從文中我們可以了解到有關(guān)于：“如何在html5實(shí)現(xiàn)datalist選中option選項(xiàng)的觸發(fā)事件？”這個(gè)問(wèn)題的全部?jī)?nèi)容，當(dāng)然如果你對(duì)于其他的內(nèi)容或者知識(shí)有興趣的話(huà)我們都能在W3Cschool這個(gè)網(wǎng)站中學(xué)習(xí)到更多的學(xué)習(xí)知識(shí)，小編也是在這個(gè)平臺(tái)總一路走出來(lái)的！希望小編的分享對(duì)大家有所收獲！


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