let base = [
{ 'id': 'base1', 'btn': 'b1-include', "name": "baseone" },
{ 'id': 'base2', 'btn': 'b2-include', "name": "basetwo" },
{ 'id': 'base3', 'btn': 'b3-include', "name": "basethree" },
{ 'id': 'base4', 'btn': 'b4-include', "name": "basefour" },
{ 'id': 'base5', 'btn': 'b5-include', "name": "basefive" },
{ 'id': 'base6', 'btn': 'b6-include', "name": "basesix" },
{ 'id': 'base7', 'btn': 'b7-include', "name": "baseseven" },
{ 'id': 'base8', 'btn': 'b8-include', "name": "baseeight" },
{ 'id': 'base9', 'btn': 'b9-include', "name": "basenine" },
{ 'id': 'base10', 'btn': 'b10-include', "name": "baseten" },
{ 'id': 'base11', 'btn': 'b11-include', "name": "baseeleven" },
{ 'id': 'base12', 'btn': 'b12-include', "name": "basetwelve" },
{ 'id': 'base13', 'btn': 'b13-include', "name": "basethirteen" },
{ 'id': 'base14', 'btn': 'b14-include', "name": "basefourteen" },
{ 'id': 'base15', 'btn': 'b15-include', "name": "basefifteen" },
];
let alphabet = [
{ "id":"A", "url":"https://example.com/A.png" },
{ "id":"B", "url":"https://example.com/B.png" },
{ "id":"C", "url":"https://example.com/C.png" }
];
let preview = $('.preview');
$.each(base, function(i, v) {
let $collapse = $('<div>', {'class': 'collapse', id: base[i].id});
let $btn = $('<a>', {'href': '#', 'class': 'btn btn-sm btn-primary', id: base[i].btn});
let $letters = $('<div>', {'class': 'letters'});
$btn.text(base[i].btn);
preview.append($collapse);
$btn.on('click', function() {
if($(this).attr('data-click-state') == 1) {
$(this).attr('data-click-state', 0);
setOpacity(base[i].name, 0.2);
} else {
$(this).attr('data-click-state', 1);
setOpacity(base[i].name, 1);
}
});
$collapse.append($btn);
$collapse.append($letters);
$.each(alphabet, function (i, v) {
let $href = $("<a>", {id: alphabet[i].id, "class": "btn btn-sm btn-dark", 'href': '#', 'title': alphabet[i].id, 'data-src': alphabet[i].url, 'data-base': base[i].id});
$href.text(alphabet[i].id);
$href.on('click', function(){
console.log(alphabet[i].id + ' has been clicked on ' + base[i].id);
setMaterialUIDPending (base[i].name, AlbedoPBR, alphabet[i].id+"-letter");
addTexture(alphabet[i].url, 'N-letter', true);
});
$letters.append($href);
});
});
.preview ul {
list-style-type: none;
display: flex;
flex-wrap: wrap;
}
.preview ul li {
flex: 1 0 25%;
margin: 5px;
}
<script src="https://code.jquery.com/jquery-3.4.1.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.bundle.min.js"></script>
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" rel="stylesheet" />
<div class="preview">
<ul>
<li id="b1"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base1" role="button" aria-expanded="false" aria-controls="base1">Base 1</a></li>
<li id="b2"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base2" role="button" aria-expanded="false" aria-controls="base2">Base 2</a></li>
<li id="b3"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base3" role="button" aria-expanded="false" aria-controls="base3">Base 3</a></li>
<li id="b4"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base4" role="button" aria-expanded="false" aria-controls="base4">Base 4</a></li>
<li id="b5"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base5" role="button" aria-expanded="false" aria-controls="base5">Base 5</a></li>
<li id="b6"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base6" role="button" aria-expanded="false" aria-controls="base5">Base 6</a></li>
<li id="b7"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base7" role="button" aria-expanded="false" aria-controls="base5">Base 7</a></li>
<li id="b8"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base8" role="button" aria-expanded="false" aria-controls="base8">Base 8</a></li>
<li id="b9"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base9" role="button" aria-expanded="false" aria-controls="base9">Base 9</a></li>
<li id="b10"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base10" role="button" aria-expanded="false" aria-controls="base10">Base 10</a></li>
<li id="b11"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base11" role="button" aria-expanded="false" aria-controls="base11">Base 11</a></li>
<li id="b12"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base12" role="button" aria-expanded="false" aria-controls="base12">Base 12</a></li>
<li id="b13"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base13" role="button" aria-expanded="false" aria-controls="base13">Base 13</a></li>
<li id="b14"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base14" role="button" aria-expanded="false" aria-controls="base14">Base 14</a></li>
<li id="b15"><a class="btn btn-sm btn-dark" data-toggle="collapse" href="#base15" role="button" aria-expanded="false" aria-controls="base15">Base 15</a></li>
</ul>
</div>