rhai/scripts/function_decl2.rhai
2022-01-20 12:06:36 +08:00

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// This script defines a function with two parameters and local variables.
let a = 3;
fn add(a, b) {
a = 42; // notice that 'a' is passed by value
a + b; // notice that the last value is returned even if terminated by a semicolon
}
let result = add(a, 4);
print(`add(a, 4) should be 46: ${result}`);
print(`a should still be 3: ${a}`); // prints 3: 'a' is never changed