remove first elemnt from set js code example

Example 1: js remove first item

let myArray = [1, 2, 3, 4, 5];

let removedElement = myArray.shift();

Example 2: remove first element of set

Set<String> set = Collections.newSetFromMap(new LinkedHashMap<String, Boolean>(){
    protected boolean removeEldestEntry(Map.Entry<String, Boolean> eldest) {
        return size() > MAX_ENTRIES;
    }
});