I am having difficulty figuring out how to populate an array with different values from HTML select options.
In the HTML I have a select dropdown:
<select id="Playlist">
<option value="trance">TRANCE</option>
<option value="house">HOUSE</option>
</select>
And I would like to populate a "songs" array of objects with different values depending on which option is selected.
for "HOUSE", the songs would be
let songs = [
{
musicFile: "./music/mp3/Lasgo - Something .mp3",
thumbnail: "./music/art/Lasgo - Something .jpg",
contributor: " ",
artist: "Lasgo",
title: "Something",
subtitle: " ",
comment: "featuring Jelle van Dael"
},
{
musicFile: "./music/mp3/Mason - You Are Not Alone .mp3",
thumbnail: "./music/art/Mason - You Are Not Alone .jpg",
contributor: " ",
artist: "Mason",
title: "You Are Not Alone",
subtitle: " ",
comment: "featuring Róisín Murphy"
}]
or if "TRANCE" is the selected option, the same array world have different values
let songs = [
{
musicFile: "./music/mp3/Aalto - Rush (Super8 vs Orkidea Remix) .mp3",
thumbnail: "./music/art/Aalto - Rush (Super8 vs Orkidea Remix) .jpg",
contributor: " ",
artist: "Aalto",
title: "Rush",
subtitle: "(Super8 vs Orkidea Remix)",
comment: " "
},
{
musicFile: "./music/mp3/Above & Beyond - 1001 .mp3",
thumbnail: "./music/art/Above & Beyond - 1001 .jpg",
contributor: " ",
artist: "Above & Beyond",
title: "1001",
subtitle: " ",
comment: " "
}]
I've tried several techniques from google searching, but I can't seem to get it working.
You can listen to changes on select option and then use a callback function (or use onchange event ) which filters your songs based on the selected option.
You can use array.filter()
method on arrays to filter a the songs
See example =>
HTML
<select id="Playlist">
<option value="TRANCE">TRANCE</option>
<option value="HOUSE">HOUSE</option>
</select>
JS
let songs = [{
musicFile: "./music/mp3/Lasgo - Something .mp3",
thumbnail: "./music/art/Lasgo - Something .jpg",
contributor: " ",
artist: "Lasgo",
title: "Something",
subtitle: " ",
comment: "featuring Jelle van Dael",
playlist: "HOUSE"
},
{
musicFile: "./music/mp3/Mason - You Are Not Alone .mp3",
thumbnail: "./music/art/Mason - You Are Not Alone .jpg",
contributor: " ",
artist: "Mason",
title: "You Are Not Alone",
subtitle: " ",
comment: "featuring Róisín Murphy",
playlist: "HOUSE"
}, {
musicFile: "./music/mp3/Aalto - Rush (Super8 vs Orkidea Remix) .mp3",
thumbnail: "./music/art/Aalto - Rush (Super8 vs Orkidea Remix) .jpg",
contributor: " ",
artist: "Aalto",
title: "Rush",
subtitle: "(Super8 vs Orkidea Remix)",
comment: " ",
playlist: "TRANCE"
},
{
musicFile: "./music/mp3/Above & Beyond - 1001 .mp3",
thumbnail: "./music/art/Above & Beyond - 1001 .jpg",
contributor: " ",
artist: "Above & Beyond",
title: "1001",
subtitle: " ",
comment: " ",
playlist: "TRANCE"
}]
const select_option = document.querySelector("#Playlist");
select_option.onchange = ()=> {
const value = select_option.value;
let filtered_songs;
switch (value) {
case "HOUSE":
filtered_songs = songs.filter(song => song.playlist === value)
break;
case "TRANCE":
filtered_songs = songs.filter(song => song.playlist === value)
break;
default:
// add some code
}
console.log(filtered_songs)
}
You could do something like this:
const allSongs = { house: [{ musicFile: "./music/mp3/Lasgo - Something .mp3", thumbnail: "./music/art/Lasgo - Something .jpg", contributor: " ", artist: "Lasgo", title: "Something", subtitle: " ", comment: "featuring Jelle van Dael" }, { musicFile: "./music/mp3/Mason - You Are Not Alone .mp3", thumbnail: "./music/art/Mason - You Are Not Alone .jpg", contributor: " ", artist: "Mason", title: "You Are Not Alone", subtitle: " ", comment: "featuring Róisín Murphy" } ], trance: [{ musicFile: "./music/mp3/Aalto - Rush (Super8 vs Orkidea Remix) .mp3", thumbnail: "./music/art/Aalto - Rush (Super8 vs Orkidea Remix) .jpg", contributor: " ", artist: "Aalto", title: "Rush", subtitle: "(Super8 vs Orkidea Remix)", comment: " " }, { musicFile: "./music/mp3/Above & Beyond - 1001 .mp3", thumbnail: "./music/art/Above & Beyond - 1001 .jpg", contributor: " ", artist: "Above & Beyond", title: "1001", subtitle: " ", comment: " " } ] } let songs = [] document.querySelector('#Playlist').addEventListener('change', (event) => { const selected = event.target.value songs = allSongs[selected] })
<select id="Playlist"> <option value="">Select genre</option> <option value="trance">Trance</option> <option value="house">House</option> </select>
I hope this could help:
let playList = {"house": [ { musicFile: "./music/mp3/Lasgo - Something .mp3", thumbnail: "./music/art/Lasgo - Something .jpg", contributor: " ", artist: "Lasgo", title: "Something", subtitle: " ", comment: "featuring Jelle van Dael" }, { musicFile: "./music/mp3/Mason - You Are Not Alone .mp3", thumbnail: "./music/art/Mason - You Are Not Alone .jpg", contributor: " ", artist: "Mason", title: "You Are Not Alone", subtitle: " ", comment: "featuring Róisín Murphy" }], "trance": [ { musicFile: "./music/mp3/Aalto - Rush (Super8 vs Orkidea Remix) .mp3", thumbnail: "./music/art/Aalto - Rush (Super8 vs Orkidea Remix) .jpg", contributor: " ", artist: "Aalto", title: "Rush", subtitle: "(Super8 vs Orkidea Remix)", comment: " " }, { musicFile: "./music/mp3/Above & Beyond - 1001 .mp3", thumbnail: "./music/art/Above & Beyond - 1001 .jpg", contributor: " ", artist: "Above & Beyond", title: "1001", subtitle: " ", comment: " " }] }; let songs = []; const playlistEl = document.querySelector("#Playlist"); songs = playList[playlistEl.value]; playlistEl.onchange = function(el) { songs = playList[this.value]; console.log(songs); }; console.log(songs);
<select id="Playlist"> <option value="trance">TRANCE</option> <option value="house">HOUSE</option> </select>
It seems that you want to have a filtered array of songs based on the option selected. For that you need to set some sort of an identifier which filters the array. so for example:
let filteredSongs = []; // to be used later
let songs = [
{
type: "trance",
title: "ab12",
// rest of the properties
},
{
type: "trance",
title: "yz55",
// rest of the properties
},
{
type: "house",
title: "ab12",
// rest of the properties
},
//... more such objects
]
and for onchange
event of your select, you can simply filter the array like this:
function handleTypeChange(event){
filteredSongs = songs.filter(s=> s.type === event.target.value);
}
So each time the option is changed you'll have filteredSongs
reset with desired results. Hope you get the idea.
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