rhai/scripts/function_decl5.rhai

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2023-03-23 10:11:42 +01:00
//! This script defines multiple versions of the same function
//! for use as method with different data types.
// For strings
fn string.calc(x) {
this.len + x
}
// For integers
fn int.calc(x) {
this * x
}
// For booleans
fn bool.calc(x) {
if this { x } else { 0}
}
// For arrays
fn array.calc(x) {
this.len + x
}
// For object maps
fn map.calc(x) {
this[x]
}
// Catch-all
fn calc(x) {
`${this}: ${x}`
}
print("hello".calc(42)); // 47
print(42.calc(42)); // 1764
print(true.calc(42)); // 42
print(false.calc(42)); // 0
print([1,2,3].calc(42)); // 45
print(#{"a": 1, "b": 2}.calc("b")); // 2
print('x'.calc(42)); // x: 42