* `fixedquery`: has the exact value `fixedquery`.
* `$`: ends there, doesn't have any more characters after `fixedquery`.

If you feel lost with all these **"regular expression"** ideas, don't worry. They are a hard topic for many people. You can still do a lot of stuff without needing regular expressions yet.

Now you know that whenever you need them you can use them in **FastAPI**.

## Default values { #default-values }

  // Historically Invokable inherited from java.lang.reflect.AccessibleObject. That's no longer the
  // case, but we do check that its API still has the same public methods. We exclude some methods
  // that were added in Java 9 and that people probably weren't calling via Invokable, namely
  // `boolean canAccess(Object)` and `boolean trySetAccessible()`.
  public void testApiCompatibleWithAccessibleObject() {
    ImmutableSet<String> invokableMethods =

    // We need to
    // 1. atomically swap the listeners with TOMBSTONE, this is because addListener uses that
    //    to synchronize with us
    // 2. reverse the linked list, because despite our rather clear contract, people depend on us
    //    executing listeners in the order they were added
    // 3. push all the items onto 'onto' and return the new head of the stack
    Listener head = gasListeners(Listener.TOMBSTONE);

### The abbr gives a full phrase and an explanation { #the-abbr-gives-a-full-phrase-and-an-explanation }

* <abbr title="Mozilla Developer Network: documentation for developers, written by the Firefox people">MDN</abbr>
* <abbr title="Input/Output: disk reading or writing, network communications.">I/O</abbr>.

////

//// tab | Info

<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor %}

<!-- /sponsors -->

[Інші спонсори](https://fastapi.tiangolo.com/uk/fastapi-people/#sponsors)

## Враження { #opinions }

<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor %}

<!-- /sponsors -->

[Andere Sponsoren](https://fastapi.tiangolo.com/de/fastapi-people/#sponsors)

## Meinungen { #opinions }

<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor %}

<!-- /sponsors -->

[Другие спонсоры](https://fastapi.tiangolo.com/ru/fastapi-people/#sponsors)

## Мнения { #opinions }

<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor %}

<!-- /sponsors -->

[Otros sponsors](https://fastapi.tiangolo.com/es/fastapi-people/#sponsors)

## Opiniones { #opinions }

<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor %}

<!-- /sponsors -->

[Outros patrocinadores](https://fastapi.tiangolo.com/pt/fastapi-people/#sponsors)

## Opiniões { #opinions }

<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor %}

<!-- /sponsors -->

[Autres sponsors](https://fastapi.tiangolo.com/fr/fastapi-people/#sponsors)

## Opinions { #opinions }