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为啥React组件export导出不生效？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...无需大括号；导入使用其他类时，需要大括号。主文件 app.js：
import React from 'react';
import ReactDOM from 'react-dom';
import {Hello} from './hello';
ReactDOM.render(
<Hello/>,
document.getElementById('app')
);
Hello 组件来自同一个文件夹中的 hel...
蓝牙BLE设备使用BLE拓展连不上蓝牙？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...蓝牙？
这里统一说明一下：
一般先用硬件厂商提供的App 或者 nRF Connect App 进行硬件连接和测试，没问题再使用ai2 ble拓展开发。
如果测试没有问题，ai2 蓝牙连接处代码及具体的报错信息截图提供，具体问题具体分析。
MAC地址可以连上，硬件通信时提示无效的UUID？ - 创客硬件开发 - 清泛IT社...
...E2:E0:5A:46:86:2F
使用MAC地址连接，一切功能正常。
这个 APP程序 使用透传UUID 还可以控制蓝牙模块的IO 口么？这个 APP程序 使用透传UUID 还可以控制蓝牙模块的IO 口么？透传uuid和io控制的uuid是不一样的，具体清参考：https://bb...
BLE通信数据不能超过20字节？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...使用调用.WriteBytes
After a lot of hours I found the problem in my app.
How I proceeded:
1- At ESP32 code I put this line: BLEDevice::setMTU(192);
2- At app I put the call Request MTU on the .Connected block asking for the same 192 bytes;
In my case, when I have to send a payload < 23...
What is the meaning of “vnd” in MIME types?
...ely used for experimental and production data interchange formats. RFC6648 appears to be advising format creators (called protocol providers in the RFC) to register their MIME types because of the slow standardization of the originally experimental features.
– Mark
...
Fat models and skinny controllers sounds like creating God models [closed]
...ding a lot of blogs which advocate the fat models and skinny controllers approach, esp. the Rails camp. As a result the routers is basically just figuring out what method to call on what controller and all the controller method does is call the corresponding method on the model and then bring up t...
How to check what version of jQuery is loaded?
... This is a bit better, but logging isn't that useful when working on an app. You're better off saving a variable first. let has$ = typeof jQuery === 'function'; console.log('jQuery' + (has$ ? ` version ${jQuery.fn.jquery} loaded.` : ' is not loaded.'));
– user9016207
...
Where can I download english dictionary database in a text format? [closed]
...
'09 cleaned-up transcript of the 1913 version, apparently the OCR wasn't completely clean. There are a total of 15 versions on the site.
– DragonLord
Jun 11 '16 at 23:02
...
IISExpress Log File Location
...
1 . By default applicationhost.config file defines following two log file locations. Here IIS_USER_HOME would be expanded as %userprofile%\documents\IISExpress\.
<siteDefaults>
<logFile logFormat="W3C" directory="%IIS_USER_HOME%\L...
How to do a GitHub pull request
... i.e., make its topic "tight", don't modify thousands of class and the all app, only add or fix a well-defined feature, keeping the changes small.
delete that branch: once accepted, you can safely delete that branch on your fork (and git remote prune origin). The GitHub GUI will propose for you to d...