functions.md

Functions in TechScript

Functions are the core units of logic in TechScript.

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🏗️ Declaration (to name(params):)

Functions are declared using the to keyword followed by the function name, parameters, a colon :, and an indented block:

to greet(name):
    say "Hello, {name}!"

to add(a, b):
    return a + b

result is add(10, 20)
say "Sum: {result}" # Sum: 30

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🎨 Return Values (return)

Use return to send a value back to the caller:

to calculate_area(width, height):
    return width * height

area is calculate_area(5, 8)
say "Area: {area}"

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🎨 Parameter Default Values

You can define parameters with fallback values:

to welcome(name, greeting = "Hello"):
    say "{greeting}, {name}!"

welcome("Alice")            # Hello, Alice!
welcome("Bob", "Hi there")  # Hi there, Bob!

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🔁 Recursion

Functions can call themselves recursively:

to factorial(n):
    if n <= 1:
        return 1
    return n * factorial(n - 1)

say "Factorial(5): {factorial(5)}" # 120