ConditionalSelect c# apply Enumerable Select method on values, conditional on a predicate

ConditionalSelect.cs

public static IEnumerable<TResult> ConditionalSelect<TSource, TResult>(this IEnumerable<TSource> source, Func<TSource, bool> predicate, Func<TSource, TResult> truthySelector, Func<TSource, TResult> falsySelector)
  {
    return source.Select(a => predicate(a) ? truthySelector(a) : falsySelector(a));
  }