Nowhere can I find an example of checking the conditions of a select drop-down list via jQ / js. For example:
If the first item is selected in select, it displays the word "hello" . Can you please write the code on the example of this condition.
As select , the code is used:
<select name="sex" id="sex"> <option value="b1"> Женский </option> <option value="b2" selected> Мужской </option> </select> 
In order to get the selected value in jQuery there is a val method:
$("#sex").val(); Accordingly, the conditions for verification:
/* Если выбран значение b1 (в данном случае первый пункт) */ if ($("#sex").val() === "b1") { alert("Woman"); /* В противном случае */ } else { alert("Not woman"); } <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <select name="sex" id="sex"> <option value="b1"> Женский </option> <option value="b2" selected> Мужской </option> </select> Without jQuery (pure javascript) getting the selected item looks like this:
var select = document.getElementById("sex"); var selectedValue = select.options[e.selectedIndex].value; If you need to check it by the index number, you can check the compliance of e.selectedIndex === 1 .
Source: https://ru.stackoverflow.com/questions/620812/
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