### Чи краща рівночасність за паралелізм? { #is-concurrency-better-than-parallelism }

Ні! Це не мораль історії.

t:"\f0d4"}.fa-google-wallet:before{content:"\f1ee"}.fa-gopuram:before{content:"\f664"}.fa-graduation-cap:before{content:"\f19d"}.fa-gratipay:before{content:"\f184"}.fa-grav:before{content:"\f2d6"}.fa-greater-than:before{content:"\f531"}.fa-greater-than-equal:before{content:"\f532"}.fa-grimace:before{content:"\f57f"}.fa-grin:before{content:"\f580"}.fa-grin-alt:before{content:"\f581"}.fa-grin-beam:before{content:"\f582"}.fa-grin-beam-sweat:before{content:"\f583"}.fa-grin-hearts:before{content:"\f5...

  public void testSplitterIterableIsLazy_string() {
    assertSplitterIterableIsLazy(Splitter.on(","));
  }

  @J2ktIncompatible
  @GwtIncompatible // java.util.regex.Pattern
  @AndroidIncompatible // not clear that j.u.r.Matcher promises to handle mutations during use
  public void testSplitterIterableIsLazy_pattern() {
    if (!CommonPattern.isPcreLike()) {
      return;
    }

import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Tests for {@link Graphs}. Tests assume that the implementation of the method {@code addEdge} adds
 * the missing nodes to the graph, then adds the edge between them.
 */
@RunWith(JUnit4.class)
@NullUnmarked
public class GraphsTest {

这在 Pydantic 2 或更高版本中可用。😎

///

/// tip | 提示

如果你需要进行任何需要与**外部组件**通信的校验，例如数据库或其他 API，你应该改用 **FastAPI 依赖项**，稍后你会学到它们。

这些自定义校验器用于只需检查请求中**同一份数据**即可完成的事情。

///

### 理解这段代码 { #understand-that-code }

关键点仅仅是：在 `Annotated` 中使用带函数的 **`AfterValidator`**。不感兴趣可以跳过这一节。🤸

---

但如果你对这个具体示例好奇，并且还愿意继续看，这里有一些额外细节。

#### 字符串与 `value.startswith()` { #string-with-value-startswith }

<div class="termy">

```console
// Go to the home directory
$ cd
// Create a directory for all your code projects
$ mkdir code
// Enter into that code directory
$ cd code
// Create a directory for this project
$ mkdir awesome-project
// Enter into that project directory
$ cd awesome-project
```

</div>

## 仮想環境の作成 { #create-a-virtual-environment }

        assertEquals(1, pageList.size());
        assertEquals("1", pageList.get(0));
    }

    @Test
    public void test_calculatePageInfo_largePageRange() {
        // Test when we have more than 11 pages (pageRangeSize * 2 + 1)
        QueryResponseList qrList = new QueryResponseList(null, 50, 10, 0) {
            @Override
            public int size() {
                return 10;
            }

    segment.count++;
    assertThat(segment.get(key, hash)).isEqualTo(value);
    assertTrue(segment.containsKey(key, hash));
    assertTrue(segment.containsValue(value));
    // don't see absent values now that count > 0
    assertThat(segment.get(new Object(), hash)).isNull();

    // null key
    InternalEntry<Object, Object, ?> nullEntry = segment.newEntryForTesting(null, hash, entry);
    Object nullValue = new Object();

    segment.count++;
    assertThat(segment.get(key, hash)).isEqualTo(value);
    assertTrue(segment.containsKey(key, hash));
    assertTrue(segment.containsValue(value));
    // don't see absent values now that count > 0
    assertThat(segment.get(new Object(), hash)).isNull();

    // null key
    InternalEntry<Object, Object, ?> nullEntry = segment.newEntryForTesting(null, hash, entry);
    Object nullValue = new Object();

	"gorm.io/gorm/schema"
)

// This regular expression seeks to find a sequence of digits (\d+) among zero or more non-digit characters (\D*),
// with a possible trailing non-digit character (\D?).

// For example, values that can pass this regular expression are:
// - "123"
// - "abc456"
// -"%$#@789"
var regFullDataType = regexp.MustCompile(`\D*(\d+)\D?`)

// TODO:? Create const vars for raw sql queries ?