c# list find index

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rumbo answered on May 19, 2021 Popularity 10/10 Helpfulness 4/10

answer c# list find index

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c# list find index

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// given list1 {3, 4, 6, 5, 7, 8}
list1.FindIndex(x => x==5);  // should return 3, as list1[3] == 5;

Popularity 10/10 Helpfulness 4/10 Language csharp

Source: stackoverflow.com

Tags: c# find list

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Contributed on Feb 25 2022

rumbo

0 Answers Avg Quality 2/10

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c# find all indexes

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public static int[] FindAllIndexOf<T>(this T[] array, Predicate<T> filter)
        {
  			// Note: If select does not find a match returns index as "-1"
            int[] indexes = array.Select((elementInArray, index) => filter(elementInArray) ? index : -1)
                                 .Where(index => index != -1).ToArray();

            return indexes;
        }

Popularity 9/10 Helpfulness 6/10 Language csharp

Source: Grepper

Tags: c# find fin

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Contributed on Jun 17 2021

Doubtful Dove

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index of item in list C#

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List<string> strings = new List<string>(){"bob","ate","an", "apple"};
strings.IndexOf("bob");
//returns 0 
strings.IndexOf("an");
//returns 2
strings.IndexOf("apple");
//returns 3
strings.IndexOf("banana");
//returns -1
//Because banana is not in the list, IndexOf() returns -1

Popularity 10/10 Helpfulness 4/10 Language csharp

Source: Grepper

Tags: c# c

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Contributed on May 19 2021

Enchanting Earthworm

0 Answers Avg Quality 2/10

get index of list c#

Comment

List<int> myList = new List<int> { 10, 20, 30, 40, 50 };
int searchValue = 30;

int index = myList.IndexOf(searchValue);

if (index != -1)
{
    Console.WriteLine($"The index of {searchValue} is: {index}");
}
else
{
    Console.WriteLine($"{searchValue} was not found in the list.");
}

Popularity 9/10 Helpfulness 4/10 Language csharp

Source: Grepper

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Contributed on Sep 11 2023

YOU.com

0 Answers Avg Quality 2/10

get index of element in list c#

Comment

List<int> numbers = new List<int> { 10, 20, 30, 40, 50 };
int elementToFind = 30;

int index = numbers.IndexOf(elementToFind);

if (index != -1)
{
    Console.WriteLine($"The index of {elementToFind} is: {index}");
}
else
{
    Console.WriteLine($"{elementToFind} not found in the list.");
}

Popularity 9/10 Helpfulness 2/10 Language csharp

Source: Grepper

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Contributed on Sep 11 2023

YOU.com

0 Answers Avg Quality 2/10

c# list find index

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