Is it has any way to get value from Select Option as Integer by default ?
from select here
<select id="lesson_per_class" >
<option value=""> </option>
<option value="1">1 Lesson</option>
<option value="2">2 Lessons</option>
<option value="3">3 Lessons</option>
<option value="4">4 Lessons</option>
</select>
When I tried to get their value to calculate, I found that it return as String and can't use to calculate here
var lesson_per_class = $('#lesson_per_class').val();
alert('value is ' + ( 10 + lesson_per_class ));
// it give result as 10x instead of 1x
currently, the way I solved is parseInt(), but I need to know, is it has anyway to get it as Integer by default?
From the spec you can see the value is a DOMString so no, you cannot get an integer by default.
http://www.w3.org/TR/html5/forms.html#the-option-element
For Java and ECMAScript, DOMString is bound to the String type because both languages also use UTF-16 as their encoding.
[NamedConstructor=Option(optional DOMString text = "", optional DOMString value, optional boolean defaultSelected = false, optional boolean selected = false)]
interface HTMLOptionElement : HTMLElement {
attribute boolean disabled;
readonly attribute HTMLFormElement? form;
attribute DOMString label;
attribute boolean defaultSelected;
attribute boolean selected;
attribute DOMString value;
attribute DOMString text;
readonly attribute long index;
};
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments