| Err | An error Result. |
| Ok | A successful Result. |
| Result | The problem with throwing an exception in JavaScript is that the caught error is always of an unknown type. The unknown type is a problem because we can't be sure all errors have been handled because the TypeScript compiler can't tell us. |
| err | Creates an Err result. |
| getOrNull | Extracts the value from a Result if it is an Ok, or returns null if it is an Err. |
| getOrThrow | Extracts the value from a Result if it is an Ok, or throws an error if it is an Err. |
| ok | Creates an Ok result. |
| tryAsync | Wraps async functions or any operation returning a promise, returning a Result. |
| trySync | Wraps synchronous functions that may throw exceptions, returning a Result. |