hw6MapFilterFold #11
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hw6MapFilterFold #11
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yurii-litvinov
requested changes
May 9, 2021
| { | ||
| public static class Functions<T> | ||
| { | ||
| public static List<T> Map(List<T> list, Func<T, T> function) |
Collaborator
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Не обязательно тип параметра должен совпадать с типом результата. Functions.Map(list, x => x.ToString()) тоже можно и часто используется.
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| namespace hw6MapFilterFold | ||
| { | ||
| public static class Functions<T> |
Collaborator
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Параметр-тип самому классу не нужен, у каждого метода есть свои
| { | ||
| public static List<T> Map(List<T> list, Func<T, T> function) | ||
| { | ||
| int count = list.Count; |
Collaborator
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Не понадобилось вроде :)
| return resultList; | ||
| } | ||
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| public static List<T> Filter(List<T> list, Func<T, bool> function) |
Collaborator
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И надо комментарии ко всему
| return returnList; | ||
| } | ||
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| public static T Fold(List<T> list, T startValue,Func<T, T, T> function) |
Collaborator
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Тут тоже с типами всё сложнее :)
yurii-litvinov
approved these changes
Jun 4, 2021
| public void FilterTest() | ||
| { | ||
| var resultList1 = new List<int>() { 2 }; | ||
| var list1 = Functions.Filter(listInt, y => y % 2 == 0 ); |
Collaborator
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Suggested change
| var list1 = Functions.Filter(listInt, y => y % 2 == 0 ); | |
| var list1 = Functions.Filter(listInt, y => y % 2 == 0 ); |
| /// <param name="startValue">начальное значение</param> | ||
| /// <param name="function">функция</param> | ||
| /// <returns>накопленное значение</returns> | ||
| public static TResult Fold<TValue, TResult>(List<TValue> list, TResult startValue,Func<TResult, TValue, TResult> function) |
Collaborator
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Suggested change
| public static TResult Fold<TValue, TResult>(List<TValue> list, TResult startValue,Func<TResult, TValue, TResult> function) | |
| public static TResult Fold<TValue, TResult>(List<TValue> list, TResult startValue, Func<TResult, TValue, TResult> function) |
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