Quick Navigation #
- Functions - Built-in functions for I/O, iteration, and data transformation
- Types - Built-in data types (Int, String, Bool, Any)
- Operators - Arithmetic, comparison, and logical operators
- Keywords - Language keywords (fn, let, type, match, import)
Function Reference #
| Function | Description |
|---|---|
| filter | Filters elements in an iterator based on a predicate function. |
| fold | Reduces an iterator to a single value using an accumulator function. |
| forEach | Applies a function to each element in an iterator. |
| input | Reads an integer from the user’s input. |
| map | Transforms each element in an iterator using a function, returning a new iterator. |
| Prints a value to the console. Automatically converts the value to a string representation. | |
| range | Creates an iterator that generates numbers from start to end (exclusive). |
| toString | Converts a value to its string representation. |
Type Reference #
| Type | Description |
|---|---|
| Any | A type that can represent any value. Useful for generic programming but should be used carefully as it bypasses type checking. |
| Bool | A boolean type that can be either true or false. Used for logical operations and conditionals. |
| Int | A 64-bit signed integer type. Can represent whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807. |
| String | A sequence of characters representing text. Supports string interpolation and escape sequences. |
Operator Reference #
| Operator | Name | Description |
|---|---|---|
| != | Inequality | Compares two values for inequality. |
| % | Modulo | Returns the remainder of dividing the first number by the second. |
| * | Multiplication | Multiplies two numbers. |
| + | Addition | Adds two numbers together. |
| - | Subtraction | Subtracts the second number from the first. |
| / | Division | Divides the first number by the second. |
| < | Less Than | Checks if the first value is less than the second. |
| <= | Less Than or Equal | Checks if the first value is less than or equal to the second. |
| == | Equality | Compares two values for equality. |
| > | Greater Than | Checks if the first value is greater than the second. |
| >= | Greater Than or Equal | Checks if the first value is greater than or equal to the second. |
| [ | >](operators/pipe-operator/) | Pipe Operator |
Keyword Reference #
| Keyword | Description |
|---|---|
| false | Boolean literal representing the logical value false. |
| fn | Function declaration keyword. Used to define functions with parameters and return types. |
| import | Import declaration keyword. Used to bring modules and their exports into the current scope. |
| let | Variable declaration keyword. Used to bind values to identifiers. Variables are immutable by default in Osprey. |
| match | Pattern matching expression. Used for destructuring values and control flow based on patterns. |
| true | Boolean literal representing the logical value true. |
| type | Type declaration keyword. Used to define custom types and type aliases. |