Function isOk

isOk<T, E>(result: Result<T, E>): result is Ok<T, E>
Type-narrowing predicate: returns true when the result is Ok.
Type Parameters
- T
- E
Parameters
- result: Result<T, E>
Returns result is Ok<T, E>
Example
```
if (isOk(r)) {
  console.log(r.value);    // narrowed to Ok branch
}
```
- Defined in packages/result/src/result.ts:43