[Term Entry] C# Strings: .Trim() (#5770)

* [Term Entry] C# Strings: .Trim()

* Update trim.md

fixed codes

---------

content/c-sharp/concepts/strings/terms/trim/trim.md

@@ -0,0 +1,78 @@
+---
+Title: '.Trim()'
+Description: 'Trims starting and ending whitespaces from a given string.'
+Subjects:
+  - 'Code Foundations'
+  - 'Computer Science'
+Tags:
+  - 'Methods'
+  - 'Functions'
+  - 'Strings'
+  - 'Characters'
+CatalogContent:
+  - 'learn-c-sharp'
+  - 'paths/computer-science'
+---
+
+In C#, the **`.Trim()`** [method](https://www.codecademy.com/resources/docs/c-sharp/methods) trims starting and ending whitespaces from a given string.
+
+## Syntax
+
+```pseudo
+str.Trim()
+```
+
+- `str`: The string from which starting and ending whitespaces are to be removed.
+
+## Example
+
+The following example demonstrates the usage of the `.Trim()` method:
+
+```cs
+using System;
+
+public class Example
+{
+    public static void Main()
+    {
+        string str = " Codecademy ";
+
+        // Using the Trim() method
+        string trimmedStr = str.Trim();
+
+        // Printing the results
+        Console.WriteLine($"Original: '{str}'");
+        Console.WriteLine($"Trimmed: '{trimmedStr}'");
+    }
+}
+```
+
+The above code produces the following output:
+
+```shell
+Original: ' Codecademy '
+Trimmed: 'Codecademy'
+```
+
+## Codebyte Example
+
+The following codebyte example shows the use of the `.Trim()` method:
+
+```codebyte/csharp
+using System;
+
+public class CodebyteExample
+{
+    public static void Main()
+    {
+        string str = " Programming ";
+
+        // Using the Trim() method
+        string trimmedStr = str.Trim();
+
+        // Printing the results
+        Console.WriteLine($"Original: '{str}'");
+        Console.WriteLine($"Trimmed: '{trimmedStr}'");
+    }
+}
+```