}, // 9
	{
		ExpectedErr: nil,
		Metadata: map[string]string{
			MetaIV: base64.StdEncoding.EncodeToString(append([]byte{1}, make([]byte, 31)...)), MetaAlgorithm: SealAlgorithm,
			MetaSealedKeyS3: base64.StdEncoding.EncodeToString(append([]byte{1}, make([]byte, 63)...)), MetaKeyID: "key-1",
			MetaDataEncryptionKey: base64.StdEncoding.EncodeToString(make([]byte, 48)),
		},

	for len(sa) > 0 && len(sb) > 0 {
		if sa[0] == sb[0] {
			ss = append(ss, identity+sa[0])
		} else {
			ss = append(ss, uniqueA+sa[0])
			ss = append(ss, uniqueB+sb[0])
		}
		sa, sb = sa[1:], sb[1:]
	}
	for len(sa) > 0 {
		ss = append(ss, uniqueA+sa[0])
		sa = sa[1:]
	}
	for len(sb) > 0 {
		ss = append(ss, uniqueB+sb[0])
		sb = sb[1:]
	}
	return strings.Join(ss, "\n")
}

    }

    // For pre-sizing a builder, just get the right order of magnitude
    StringBuilder builder = new StringBuilder(array.length * 5);
    builder.append(toString(array[0]));
    for (int i = 1; i < array.length; i++) {
      builder.append(separator).append(toString(array[i]));
    }
    return builder.toString();
  }

  /**
   * Returns a comparator that compares two arrays of unsigned {@code int} values <a

            for (final Map.Entry<String, String> entry : infoMap.entrySet()) {
                if (buf.length() != 0) {
                    buf.append(',');
                }
                buf.append(entry.getKey()).append('=').append(entry.getValue());
            }
            if (logger.isInfoEnabled()) {
                logger.info("[CRAWL INFO] {}", buf);
            }

    }

    // For pre-sizing a builder, just get the right order of magnitude
    StringBuilder builder = new StringBuilder(array.length * 5);
    builder.append(toString(array[0]));
    for (int i = 1; i < array.length; i++) {
      builder.append(separator).append(toString(array[i]));
    }
    return builder.toString();
  }

  /**
   * Returns a comparator that compares two arrays of unsigned {@code long} values <a

		*GetUser("slice-joins-3", Config{Company: true, Manager: true, Account: true}),
	}

	DB.Create(&users)

	var userIDs []uint
	for _, user := range users {
		userIDs = append(userIDs, user.ID)
	}

	var users2 []User
	if err := DB.Joins("Company").Joins("Manager").Joins("Account").Find(&users2, "users.id IN ?", userIDs).Error; err != nil {
		t.Fatalf("Failed to load with joins, got error: %v", err)

Pour expliquer la différence, voici une histoire de burgers :

#### Burgers concurrents

Vous amenez votre crush 😍 dans votre fast food 🍔 favori, et faites la queue pendant que le serveur 💁 prend les commandes des personnes devant vous.

<img src="/img/async/concurrent-burgers/concurrent-burgers-01.png" class="illustration">

func (set Set) Assignments() []Assignment { return []Assignment(set) }

func Assignments(values map[string]interface{}) Set {
	keys := make([]string, 0, len(values))
	for key := range values {
		keys = append(keys, key)
	}
	sort.Strings(keys)

	assignments := make([]Assignment, len(keys))
	for idx, key := range keys {
		assignments[idx] = Assignment{Column: Column{Name: key}, Value: values[key]}
	}
	return assignments

			}
			replies[idx] = info
		}(client, i)
	}
	wg.Wait()

	// Add local to this server.
	replies = append(replies, objLayer.LocalStorageInfo(ctx, metrics))

	storageInfo.Backend = objLayer.BackendInfo()
	for _, sinfo := range replies {
		storageInfo.Disks = append(storageInfo.Disks, sinfo.Disks...)
	}

	return storageInfo
}

// ServerInfo - calls ServerInfo RPC call on all peers.

	capitalPutObjects := make([]MetricV2, 0, len(histBuckets)+1)
	for _, metric := range metrics {
		if value := metric.VariableLabels["api"]; value == "PutObject" {
			capitalPutObjects = append(capitalPutObjects, metric)
		}
	}
	if expMetricsPerAPI := len(histBuckets) + 1; expMetricsPerAPI != len(capitalPutObjects) {
		t.Fatalf("Expected %d api=PutObject metrics but got %d", expMetricsPerAPI, len(capitalPutObjects))