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What's the difference between UTF-8 and UTF-8 without BOM?
...ommended but it did wonders to my powershell script when trying to output "æøå"
– Marius
Nov 12 '13 at 9:22
63
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Rails 4: List of available datatypes
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For Postgres there is additionally a uuid type which can be used as normal field like t.uuid :name... or as primary key like create_table :users, id: :uuid do... or e.g. t.primary_key :id, :uuid, :default => 'uuid_generate_v1()'
– TNT
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Is there a way to make R beep/play a sound at the end of a script?
...ered Jul 1 '14 at 18:08
Rasmus BååthRasmus Bååth
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What is your preferred style for naming variables in R? [closed]
...ered Nov 16 '12 at 8:55
Rasmus BååthRasmus Bååth
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Mocking static methods with Mockito
...ception occurred while fetching localhost address", e);
return UUID.randomUUID().toString();
}
}
}
My test class:
@RunWith(PowerMockRunner.class)
@PrepareForTest(SmokeRouteBuilder.class)
public class SmokeRouteBuilderTest {
@Test
public void testSmokeMessageId_exce...
拍照时报错求助！ - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
拍照时如果长时间在拍照界面，拍完照后会报错，然后程序死机谷歌没有任何相关报错信息资料。AppInventor源码整个没有这个报错信息。
大概率是你程序中自己报的错误信息。你先看下代码块，相关地方的代码截图看看。App Inve...
ble 蓝牙透传代码怎么写？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...块这个地址可以吗？
上图中是控制服务id：SERVICEF000_UUUID = UUID.fromString("0000f000-0000-1000-8000-00805f9b34fb");以及2个控制端口的特征id。
可以做到透传，不过要换透传 id，这个 id 是 io 控制口
晚一些我给你一下 透传 id。
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创建并发送BLE蓝牙广播 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...一些问题。Evan Patton指出，Android的BLE子系统需要使用16位UUID，并提供了一个测试版的BLE扩展，解决了广播发送失败的问题。
以下是帖子中的详细步骤和细节：
BLE扩展问题：用户在使用BLE扩展时遇到广播无法发送的问题。UUID...
Add a reference column migration in Rails 4
...cument if someone has the same problem...
In my situation I've been using :uuid fields, and the above answers does not work to my case, because rails 5 are creating a column using :bigint instead :uuid:
add_reference :uploads, :user, index: true, type: :uuid
Reference: Active Record Postgresql UUID...
Getting MAC Address
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Python 2.5 includes an uuid implementation which (in at least one version) needs the mac address. You can import the mac finding function into your own code easily:
from uuid import getnode as get_mac
mac = get_mac()
The return value is the mac...