Command Line Arguments

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// Tutorial 15: Command Line Arguments
// Working with program arguments

just run {
    let argc = argCount()
    kp("Number of arguments: " + argc)

    if argc == 0 {
        kp("No arguments provided.")
        kp("Try running with some arguments!")
    } else {
        // arg(0) through arg(n-1)
        let i = 0
        while i < argc {
            kp("  arg(" + i + ") = " + arg(i))
            i = i + 1
        }

        // Example: use first arg as name
        kp("Hello, " + arg(0) + "!")
    }
}

Click ▶ Run to execute. Lessons using k:fs/k:http/match/struct need the real runtime.

Tip: this code box is editable — tweak it, then hit Run, or copy into a .k file and run locally.

Run it locally: kcc -r tutorial/15_arguments.k

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