In Julia, multiple arguments can be passed to a method or function by including them within the parentheses when defining the function. Here's an example of how to define a method with multiple arguments:
function add_numbers(x::Int, y::Int, z::Int)
return x + y + z
end
In this example, the function add_numbers() accepts three arguments x, y, and z, each of which must be of type Int. The function returns the sum of the three arguments.
To use the add_numbers() function, we can simply call it with three integer arguments:
result = add_numbers(1, 2, 3)
println(result)
This will output 6, indicating that the function successfully computed the sum of the three arguments.
We can also define a function with optional arguments using the ? syntax. Here's an example:
function greet(name, greeting="Hello")
println("$greeting, $name!")
end
In this example, the greet() function accepts two arguments - a name and an optional greeting (which defaults to "Hello"). The function then prints the greeting followed by the name.
We can call this function with just a name, which will use the default greeting:
greet("Julia")
This will output Hello, Julia!.
Alternatively, we can pass in a custom greeting:
greet("Julia", "Good morning")
This will output Good morning, Julia!.