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javascript - Getting error Uncaught ReferenceError: firebase is not defined

I have tried too many things and read too many documents but can't find the solution My html:- <html> <head> < ... pasted some other scripts to html as they where written in Docs...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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reactjs - React Enzyme test Child Component if is rendered

Hi I have problem with Enzyme how to make test on parent where child component will show only if status = 'visible'. Here ... table-info') expect(component.length).toBe(1) }) } })...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how can I set (add) a label to a jenkins node from itself (powershell windows 2017)

how can I set (add) a label to a jenkins node from itself (powershell windows 2017) ? I have no access to jenkins admin ... I can build a script around that after to make it all)....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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authentication - Cannot login to Visual studio 2019 - Access denied

I have instaled the community version which should be free, but it is getting expired. Found out after signing in it should ... , but I get the below issue. How to solve this?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - How to transfer faster Bluetooth data?

I am using Windows.Devices.Bluetooth library in the Windows forms. Communication between devices is fine, but too slow (I ... possible to speed it up? Thank you for your response!...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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微信小程序支付，查询订单接口如果返回trade_state不为 SUCCESS时，到底包含哪几个字段？

可能我理解能力不好，我总感觉文档没有写清楚文档说：如trade_state不为 SUCCESS，则只返回out_trade_no（必传）和attach（选传）这意思是，如果trade_state不为 SUCCESS，则返回的是以下哪个组合： A： ... A B还是C？如果是A，那相当于只告诉支付失败，不告诉失败的具体情况和原因 ...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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一个组件监听mousedown和mouseup组件，超出组件范围后，mouseup事件不触发，怎么解决？

比如 <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale= ... id="root"></div> </body> </html> 此时up无法响应...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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如何在 productFlavors 里修改 app_name ？

productFlavors{ a { applicationIdSuffix ".a" } } 总所周知在 productFlavors 里定义 applicationIdSuffix, 可以追加 appid 名称那么请问如何同样的追加 app_name 名称呢？我希望 a 渠道打包出来的比正常的多一个 .a...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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beego的关联查询如何自定义外键名称

type UserReaded struct { Id uint32 `orm:"auto;size(11)"` Uid uint32 `orm:"size(11)"` NovId uint32 `orm:"size(11)"` ChapterNo uint32 ... } 这样关联默认是使用novel_id，但是我想要自定义成nov_id,请问如何修改...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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docker - Unoconv call (openoffice) from other container

I am new in linux and docker. I need to convert odt files to pdf from php container. I use php-5.6-apache and ... is not possible from other container. How can I do it? Thanks...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - summerize NA, count BY GROUP

I have this data frame for the test: test_df <- structure(list(plant_sp = c("plant_1", "plant_1", "plant_2", "plant_2", " ... in the group and 0 "NA" can you help me? thanks Ido...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Android custom navigation view to accept menu resource

I'm implementing a custom navigation view where I want to accept a menu resource to describe menu items. As you can see ... to inflate the menu defined in xml in my custom view?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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flex-shrink: 0;看起来好像没起作用？请问这是为什么？

HTML <div class="app"> <div class="wrap">11</div> </div> CSS html,body{ margin: 0; padding: 0; } .app{ width: 100vw; display: flex; ... 检查元素显示wrap的宽度仍然是1440，但是左上角的11却看不见了，请问这是为什么？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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store.js相比于原生的Storage有什么优势?

看到项目里存储是用store.js,好像也没太大必要吧...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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518 views

1 answer

Create a table from one line CSV data on SAS

I try to import data from a csv with only one line data formatted like this : ... @@; run; Thank you for your help....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to setup a VXLAN tunnel between two hosts in one Mininet topology?

I am trying to set up a VxLAN tunnel in the below topology: This is how i added VXLAN ports on both OVSs These ... . But no connectino is happening between host h1 to host d1....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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请问这2个css效果是怎样实现的？有没有demo呢？

请问这2个效果是怎样实现的？有没有demo呢？粉色那个圈是轮播图的跑马灯指示器。我想用el-carousel来做的话。默认的是横条。我该在原来的基础上改写吗？还是把默认的隐藏。自己另外写一个放上去呢？如图：链接： http://www.clevermama.com.cn/...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

sql - calculation sum of cost for the full hour

based on the value in the table: timestamp, cost I would like to get the increment sum of cost value every hour. Table: Timestamp Price ... -01-12 03:01:00 3 2021-01-12 03:02:00 2...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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前端RSA加密密钥格式

前端生成公钥方式： let szPublicKeyString = Secure.generateRSAPublicKey(szMattsRSAkey); 前端有对公钥进行base64进行编码，代码未体现后端使用前端生成的公钥进行数据加密报错后端使用的Hutool依赖包 ... 加密有没有大佬曾经搞过加密解密的，忘指点一下，卡这好久了，在卡要被劝退了...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Python '_elementunicoder,self.val添加不到mysql

...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

kotlinx.serialization - Can I use kotlinx classes in Kotlin scripts?

Is it possible to import classes from kotlinx package in a simple Kotlin script? myscript.kts: import kotlinx.serialization.* ... on. I am using Kotlin compiler version 1.4.0....

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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关于Vue中路由的问题

在嵌套路由的情况下，router-view在没有router-link的情况下怎么知道是展示某个路由或者是其子路由呢...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1 answer

jquery :visible筛选

请问下jquery不能够多级筛选吗？ <ul> <li> <select></select> </li> </ul> 比如我想筛选ul下可见的select标签，但是我只控制了ul的显示隐藏用$('ul:visible ... ('ul select:visible')都取的不对只能用$('ul:visible').find('select')来获取吗？...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vue的mixins有什么好处和弊处？

...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift4 ，如何获取UIImage 图片的大小？

swift 获取UIimage 图片大小 **let** data: Data = UIImageJPEGRepresentation(image!,0.5)! **let** imageSize: Float = Float(data.count/1024) print("图片原 ... ) kb") 这个方法好像有问题输入 1 输入 0.5 都不准...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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请问C#中如何动态生成自定义窗体？

我需要在C# winform项目的代码中根据判断条件new出不同的窗体赋给变量diag，请问diag要定义成什么类型呢？我定义成Form基类可以吗 switch(seq) { Form diag； case 1: diag = new form1(); breakl; case 2: diag = new form2(); breakl; ...... }...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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171 views

1 answer

Doxyen的命令没有长选项吗？

Doxyen -h显示的命令，都只有短选项，去官方网站上也没有看到命令有长选项，是根本就没有吗？如果没有的话，怎么知道直接缩写的意思呢？比如Doxyen -g中g的含义。...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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replace方法替换正则数字。

请问这句话是什么意思？ replace(/(d{4})(d{2})(d{2})/, '$1-$2-$3') 搞不懂替换之后结果。...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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