Usage example is integer

[sananoureen35]

Description

I added a Utilities usage example for is_integer. The program is reading text lines and printing whether each is an integer; it is exiting when the user types q.

Type of change

• Documentation (update or new)

How Has This Been Tested?

I verified the example locally in two steps. First, I ran each language individually: C++ with SplashKit, C# top-level and C# OOP with dotnet run. I confirmed that valid integers report “Integer”, non-integers report “Not integer”, and typing q or quit exits. Second, I added the files to the repository and ran npm run build followed by npm run preview; I opened the Utilities page and confirmed the example rendered and the GIF displayed.

Testing Checklist

• Tested in latest Chrome
• Tested in latest Firefox
• npm run build
• npm run preview

Checklist

If involving code

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Folders and Files Added

src/assets/usage-examples-code/utilities/is_integer/is_integer-1-basic.cpp
src/assets/usage-examples-code/utilities/is_integer/is_integer-1-basic.cs
src/assets/usage-examples-code/utilities/is_integer/is_integer-1-basic-oop.cs
src/assets/usage-examples-code/utilities/is_integer/is_integer-1-basic.txt
public/usage-examples-images-gifs/utilities/is_integer-1-basic.gif

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