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Convert a string array to an int array in C#

C# has a built in method called Array.ConvertAll() which is used to convert an array of one type to another type. We can use it as follows to convert a string array to an integer array:

using System;
 
public class Example
{
    public static void Main()
    {
        string[] strings = new string[] {"1", "2", "3"};
 
        int[] ints = Array.ConvertAll(strings, s => int.Parse(s));
        Console.WriteLine(String.Join(",", ints));
    }
}

Output

1,2,3

Example with lambda expression

using System;
 
public class Example
{
    public static void Main()
    {
        string[] strings = new string[] {"1", "2", "3"};
 
        int[] ints = Array.ConvertAll(strings, int.Parse);
        Console.WriteLine(String.Join(",", ints));
    }
}


Conclusion

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