# `Soundcheck.Check.Refactor.TemporaryAssignCandidate`
[🔗](https://github.com/leonqadirie/soundcheck/blob/v0.1.0/lib/soundcheck/check/refactor/temporary_assign_candidate.ex#L1)

## Basics

> #### This check is disabled by default. {: .neutral}
>
> [Learn how to enable it](`e:credo:config_file.html#checks`) via `.credo.exs`.

This check has a base priority of `low` and works with any version of Elixir.

## Explanation

Flags list assigns that are only replaced whole, rendered once with
`:for`, and never read in code. The LiveView keeps the list in memory
after rendering it, though nothing reads it again until the next
replacement.

Before:

    def handle_event("refresh", _params, socket) do
      {:noreply, assign(socket, :log_lines, fetch_log())}
    end

    <p :for={line <- @log_lines}>{line}</p>

After, with a stream:

    {:noreply, stream(socket, :log_lines, fetch_log(), reset: true)}

Or declare the key in `temporary_assigns` returned from `mount/3`.
Keys already in `temporary_assigns`, keys written with `update/3`,
`assign_new/3`, or `assign_async/3`, and keys read through
`socket.assigns` are left out.

Confidence: low. Tier: syntactic (works without compiling).

## Check-Specific Parameters

Use the following parameters to configure this check:

### `:excluded_paths`

  Paths to skip (atoms, binaries as path segments, or regexes).

*This parameter defaults to* `[~r/\/test\//, "test"]`.

### `:strict`

  Unused.

*This parameter defaults to* `false`.

## General Parameters

Like with all checks, [general params](`e:credo:check_params.html`) can be applied.

Parameters can be configured via the [`.credo.exs` config file](`e:credo:config_file.html`).

---

*Consult [api-reference.md](api-reference.md) for complete listing*