Immutable Lists
Playing with Immutable.js lists
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/immutable/3.7.2/immutable.min.js"></script>
JavaScript
console.clear();
var list = Immutable.List([ 1, 2, 3 ]);
var map = Immutable.Map({});
map.set(1, 123);
map.set(2, 234);
map.set(3, 345);
alert(123)
console.log(map.toArray());