How to use Select Onchange in Javascript?
onchange on select tag
<select id="comboA" onchange="getComboA(this)">
<option value="">Select combo</option>
<option value="Value1">Text1</option>
<option value="Value2">Text2</option>
<option value="Value3">Text3</option>
</select>Select Onchange in JavaScript
<select id="osDemo" onchange="detectChange(this)">
<option value="Linux">Linux</option>
<option value="Windows">Windows</option>
<option value="MacOS">MacOS</option>
</select>function detectChange(selectOS) {
console.log(selectOS.value)
}