[英]How to make selected alert pop up when selected index was choosen
I want to make if selected index in option was choosen then the selected alert is pop up, but I don't know how to do it, here is my JavaScript code: 我想确定是否选择了选项中的选定索引,然后弹出选定警报,但我不知道如何执行,这是我的JavaScript代码:
<script>
function check1(){
var e= document.getElementById("maske");
var selec= e.options[e.selectedIndex].value;
if(document.selec.value==1){
alert("Minta tambahan gaji");
}
}
My html code: 我的html代码:
<select name="masalah_keuangan" id="maske">
<option value="1">Gaji terlalu sedikit</option>
</select>
<button name="button1" onclick="check1();">Enter</button>
I want if the option value is 1, then the alert("Minta tambahan gaji")
pops up 我想如果选项值为1,则弹出
alert("Minta tambahan gaji")
How to do it? 怎么做?
Function should be like below 功能应该如下
function check1(){
var e = document.getElementById("maske");
var selec = e.options[e.selectedIndex].value;
if(selec==1){
alert(e.options[e.selectedIndex].text);
}
}
First, you need to have to get the value of the option (select) and after the if condition, show the alert: 首先,您需要获取选项的值(选择),然后在if条件之后显示警报:
function check1(){ var theElement = document.getElementById("maske"); var selectedOption = theElement.options[theElement.selectedIndex].value; if(selectedOption==1){ alert(theElement.options[theElement.selectedIndex].text); } }
<select name="masalah_keuangan" id="maske"> <option value="1">Gaji terlalu sedikit</option> <option value="2">Text 2</option> <option value="3">Text 3</option> <option value="4">Text 4</option> </select> <button name="button1" onclick="check1();">Enter</button>
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