FruityFoundation/Base/Extensions/EnumerableExtensions.cs

using System;
using System.Collections.Generic;
using System.Linq;

namespace FruityFoundation.Base.Extensions;

public static class EnumerableExtensions
{
	public static IEnumerable<T> ConditionalConcat<T>(this IEnumerable<T> enumerable, bool isConditionValid, IEnumerable<T> second) =>
		!isConditionValid ? enumerable : enumerable.Concat(second);
	
	public static IEnumerable<T> ConditionalWhere<T>(this IEnumerable<T> enumerable, bool isConditionValid, Func<T, bool> pred) =>
		!isConditionValid ? enumerable : enumerable.Where(pred);
}