> For the complete documentation index, see [llms.txt](https://demystifyfp.gitbook.io/fstoolkit-errorhandling/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://demystifyfp.gitbook.io/fstoolkit-errorhandling/fstoolkit.errorhandling/result/others.md).

# Other Functions

## isOk

Returns `true` if the value is Ok, otherwise returns `false`.

### Function Signature

```fsharp
Result<_> -> bool
```

## isError

Returns `true` if the value is Error, otherwise returns `false`.

### Function Signature

```fsharp
Result<_> -> bool
```

## sequenceAsync

Converts a `Result<Async<'a>, 'b>` to `Async<Result<'a, 'b>>`.

### Function Signature

```fsharp
Result<Async<'a>, 'b> -> Async<Result<'a, 'b>>
```

## sequenceTask

Converts a `Result<Task<'a>, 'b>` to `Task<Result<'a, 'b>>`.

### Function Signature

```fsharp
Result<Task<'a>, 'b> -> Task<Result<'a, 'b>>
```

### Examples

#### Example 1

```fsharp
let result : Task<Result<int, string>> =
    Ok (Task.FromResult 1)
    |> Result.sequenceTask
    
// Task { Ok 1 }
```

#### Example 2

```fsharp
let result : Task<Result<int, string>> =
    Error "Something went wrong"
    |> Result.sequenceTask
    
// Task { Error "Something went wrong" }
```

## traverseAsync

Converts a `Result<'a, 'error>` to `Async<Result<'b, 'error>>` by applying the given function to the Ok value.

### Function Signature

```fsharp
('okInput -> Async<'okOutput>) -> Result<'okInput, 'error> 
    -> Async<Result<'okOutput, 'error>>
```

## setError

Replaces an error value with a custom error value

### Function Signature

```fsharp
'a -> Result<'b, 'c> -> Result<'b, 'a>
```

## withError

Replaces a unit error value with a custom error value. Safer than `setError` since you're not losing any information.

### Function Signature

```fsharp
'a -> Result<'b, unit> -> Result<'b, 'a>
```

## defaultValue

Returns the contained value if Ok, otherwise returns the provided value

### Function Signature

```fsharp
'a -> Result<'a, 'b> -> 'a
```

## defaultError

Returns the contained value if Error, otherwise returns the provided value

### Function Signature

```fsharp
'b -> Result<'a, 'b> -> 'b
```

## defaultWith

Returns the contained value if Ok, otherwise evaluates the given function and returns the result.

### Function Signature

```fsharp
(unit -> 'a) -> Result<'a, 'b> -> 'a
```

## valueOr

Returns the Ok value or runs the specified function over the error value.

### Function Signature

```fsharp
('b -> 'a) -> Result<'a, 'b> -> 'a
```

## ignore

Ignores the value of the input result and returns unit instead

### Function Signature

```fsharp
Result<'ok, 'error> -> Result<unit, 'error>
```

## ignoreError

Same as `defaultValue` for a result where the Ok value is unit. The name describes better what is actually happening in this case.

### Function Signature

```fsharp
Result<unit, 'a> -> unit
```


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://demystifyfp.gitbook.io/fstoolkit-errorhandling/fstoolkit.errorhandling/result/others.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.