Tambahkan option pada select
pentingnya: 5
There’s a <select>
:
<
select
id
=
"
genres"
>
<
option
value
=
"
rock"
>
Rock</
option
>
<
option
value
=
"
blues"
selected
>
Blues</
option
>
</
select
>
Gunakan Javascript untuk:
- Tampilkan nilai dan teks dari selected option.
- Tambahkan sebuah option:
<option value="classic">Classic</option>
. - Buat menjadi selected.
Note, jika semua benar, alert akan menampilkan blues
.
The solution, step by step:
<
select
id
=
"
genres"
>
<
option
value
=
"
rock"
>
Rock</
option
>
<
option
value
=
"
blues"
selected
>
Blues</
option
>
</
select
>
<
script
>
// 1)
let
selectedOption =
genres.
options[
genres.
selectedIndex]
;
alert
(
selectedOption.
value )
;
// 2)
let
newOption =
new
Option
(
"Classic"
,
"classic"
)
;
genres.
append
(
newOption)
;
// 3)
newOption.
selected =
true
;
</
script
>