elsa-core/src/modules/Elsa.Common/Extensions/CollectionExtensions.cs

// ReSharper disable once CheckNamespace
namespace Elsa.Extensions;

public static class CollectionExtensions
{
    public static void AddRange<T>(this ICollection<T> target, IEnumerable<T> source)
    {
        foreach (var item in source) target.Add(item);
    }

    public static void RemoveWhere<T>(this ICollection<T> collection, Func<T, bool> predicate)
    {
        var itemsToRemove = collection.Where(predicate).ToList();
        foreach (var item in itemsToRemove) collection.Remove(item);
    }
}