Dans les versions précédentes de Javascript NodeJS / Navigateur, vous auriez utilisé des "callbacks". Menant potentiellement à ce que l'on appelle <a href="http://callbackhell.com/" class="external-link" target="_blank">le "callback hell"</a>.


## Coroutines

		return BackendDown{Err: err.Error()}
	}

	minioErr, ok := err.(minio.ErrorResponse)
	if !ok {
		// We don't interpret non MinIO errors. As minio errors will
		// have StatusCode to help to convert to object errors.
		return err
	}

	switch minioErr.Code {
	case "SlowDownWrite":
		err = InsufficientWriteQuorum{Bucket: bucket, Object: object}
	case "SlowDownRead":

// Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer
// object, creating another object (Reader or Writer) that also implements
// the interface but provides buffering and some help for textual I/O.
package bufio

import (
	"bytes"
	"errors"
	"io"
	"strings"
	"unicode/utf8"
)

const (
	defaultBufSize = 4096
)

var (

Eine weitere wichtige Funktion, benötigt von APIs, ist die Datenvalidierung, welche sicherstellt, dass die Daten unter gegebenen Umständen gültig sind. Zum Beispiel, dass ein Feld ein `int` ist und kein zufälliger String. Das ist besonders nützlich für hereinkommende Daten.

Ohne ein Datenvalidierungssystem müssten Sie alle Prüfungen manuell im Code durchführen.

   * ensure type safety. For best results, use the standard method-chaining idiom illustrated in the
   * class documentation above, configuring a builder and building your cache in a single statement.
   * Failure to heed this advice can result in a {@link ClassCastException} being thrown by a cache
   * operation at some <i>undefined</i> point in the future.
   *

    ) -> Callable[[DecoratedCallable], DecoratedCallable]:
        """
        Add a *path operation* using an HTTP HEAD operation.

        ## Example

        ```python
        from fastapi import FastAPI, Response

        app = FastAPI()

        @app.head("/items/", status_code=204)
        def get_items_headers(response: Response):

a)return!1;return!0},type:function(a){return null==a?a+"":"object"==typeof a||"function"==typeof a?h[i.call(a)]||"object":typeof a},globalEval:function(a){var b,c=eval;a=n.trim(a),a&&(1===a.indexOf("use strict")?(b=l.createElement("script"),b.text=a,l.head.appendChild(b).parentNode.removeChild(b)):c(a))},camelCase:function(a){return a.replace(p,"ms-").replace(q,r)},nodeName:function(a,b){return a.nodeName&&a.nodeName.toLowerCase()===b.toLowerCase()},each:function(a,b,c){var d,e=0,f=a.length,g=s(a);i...

  public static ByteArrayDataOutput newDataOutput() {
    return newDataOutput(new ByteArrayOutputStream());
  }

  /**
   * Returns a new {@link ByteArrayDataOutput} instance sized to hold {@code size} bytes before
   * resizing.
   *
   * @throws IllegalArgumentException if {@code size} is negative
   */
  public static ByteArrayDataOutput newDataOutput(int size) {

    }
    return doubles;
  }

  /**
   * Performs an in-place selection to find the element which would appear at a given index in a
   * dataset if it were sorted. The following preconditions should hold:
   *
   * <ul>
   *   <li>{@code required}, {@code from}, and {@code to} should all be indexes into {@code array};
   *   <li>{@code required} should be in the range [{@code from}, {@code to}];

  // probably is the storage version.
  // +optional
  optional GroupVersionForDiscovery preferredVersion = 3;

  // a map of client CIDR to server address that is serving this group.
  // This is to help clients reach servers in the most network-efficient way possible.
  // Clients can use the appropriate server address as per the CIDR that they match.
  // In case of multiple matches, clients should use the longest matching CIDR.