Is string in array?

Question

What would be the best way to look in a string[] to see if it contains a element. This was my first shot at it. But perhaps there is something that I am overlooking. The array size will be no larger than 200 elements.

bool isStringInArray(string[] strArray, string key) {     for (int i = 0; i <= strArray.Length - 1; i++)         if (strArray[i] == key)             return true;     return false; } 

Answer 1

Just use the already built-in Contains() method:

using System.Linq;  //...  string[] array = { "foo", "bar" }; if (array.Contains("foo")) {     //... } 

Answer 2

I know this is old, but I wanted the new readers to know that there is a new method to do this using generics and extension methods.

You can read my blog post to see more information about how to do this, but the main idea is this:

By adding this extension method to your code:

public static bool IsIn<T>(this T source, params T[] values) {     return values.Contains(source); } 

you can perform your search like this:

string myStr = "str3";  bool found = myStr.IsIn("str1", "str2", "str3", "str4"); 

It works on any type (as long as you create a good equals method). Any value type for sure.