Functions: Type

Kahuna provides functions to check the type of a variable and to cast values between supported types, helping developers write safer and more predictable logic.

Type Checking Functions

Function	Description	Example
`is_null(x)`	Returns `true` if `x` is `null`	`is_null(null)` → `true`
`is_bool(x)` / `is_boolean(x)`	Returns `true` if `x` is a boolean	`is_bool(true)` → `true`
`is_int(x)` / `is_integer(x)` / `is_long(x)`	Returns `true` if `x` is an integer	`is_int(42)` → `true`
`is_float(x)` / `is_double(x)`	Returns `true` if `x` is a floating-point number	`is_double(42.5)` → `true`
`is_str(x)` / `is_string(x)`	Returns `true` if `x` is a string	`is_string("hello")` → `true`
`is_array(x)`	Returns `true` if `x` is an array	`is_array([1, 2, 3])` → `true`

Type Casting Functions

Function	Description	Example
`to_bool(x)` / `to_boolean(x)`	Casts `x` to a boolean	`to_bool("true")` → `true`
`to_int(x)` / `to_integer(x)` / `to_long(x)` / `to_number(x)`	Casts `x` to an integer	`to_int("42")` → `42`
`to_float(x)` / `to_double(x)`	Casts `x` to a floating-point number	`to_double("42.5")` → `42.5`
`to_str(x)` / `to_string(x)`	Converts `x` to a string	`to_string(99)` → `"99"`

These functions are especially useful in dynamic scripting scenarios, when working with user input, or reading heterogeneous data from the key/value store.

Type Checking Functions​

Type Casting Functions​

Type Checking Functions

Type Casting Functions