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mongoose - Mongodb: push element to nested array if the condition is met

I have the following collection: { "_id": 11, "outerArray": [ { "_id" : 21, "field": { "innerArray" : [ 1, ... ": 4} } ) How to make it push to all coresponding innerArrays?...

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

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powershell - Add a log analytics workspace to Azure VM without replacing existing workspaces

I have the following Powershell command Set-AzVMExtension -ExtensionName "MicrosoftMonitoringAgent" ` -ResourceGroupName "rg-xxxx" ... a workspace and not overwrite? Thanks, Neil....

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

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vue中axios上传多个文件时，如何设置CancelToken取消指定的文件请求

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

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vue3.0+ts中使用 ?. （es2020 可选的链接操作）和 prettier 导致多出空格的问题

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

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mongodb - How to replicate the last value of an attribute in all records with mongoose

I have this collection and I need to replicate the value of last hour earnings in all records with the same url [ { earnings ... -01-11" } ] how to make this querie with mongoose?...

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

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java xpath 报错求指教，字符串报错

package main; import com.company.mingspider; import org.dom4j.DocumentException; import org.dom4j.Node; import org.dom4j.io.SAXReader; import ... 这里的ResponseBody 是字符串，为啥报错呢？求教，谢谢...

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

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java - How can I create independent TestNG Maven executable

I need to create a .jar file using maven and testng. My jar needs to read a testng.xml file and execute all the tests ... > </execution> </executions> </plugin> </plugins> </build>...

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

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create a drop down list in excel using python

I'd like to create a simple drop down list in excel using python, that contains : the first cell alow me to filter ... have the drop down list thank you in advance for your help!...

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

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java - AuthorizationException: null using Micronaut , Aws-sam-cli and Docker

My code developed in java works correctly in everything else, but always i try to execute the following post routine, it ... admin auth). The body of the requisition is correct....

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

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flutter自定义路由过渡动画如何给旧页面添加动画？

我想用一个ios页面过渡效果的动画，但不想要阴影，按照网上的一些教程写的自定义动画，发现动画只对新页面有效，请问如何给旧页面加上动画？...

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

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slot?里面?改了值，子组件里?为什么不响应？[急，在线等]

这种写法，?这些参数，??slot?里面?改了值，refresh子组件里?为什么不响应，没变化？下面这样写，也不行。...

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

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reactjs - How to send a query from the frontend (React) to Django with Rest Framework

i want to receive a particular input from the frontend react textarea to perform a certain function in django backend. Anybody ... ): class Meta: model = Test fields = '__all__'...

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

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请问一下 typescript 可以做到限定传入的参数为几个常量中的一个？

请问一下 typescript 可以做到限定传入的参数为几个常量中的一个？比如希望传入的参数size是'L','M','S'中的一个...

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

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UWP Application not run correctly on startup

I used the following code to set up and test the startup, but when I reset the computer, my project is displayed below, ... show a Message-Dialog on public MainPage(), that's all....

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

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关于一个带sliderBarde flex布局

现在是这样的 flex布局分三列两端固定，中间自适应，父元素flex father { display: flex; } left { width: 458px; } right { height: 458px; } center { flex: 1; } ... 展开的时候，center不压缩而是整个父元素整体向右边推，产生一个滚动条蛋疼如何解决...

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

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antd Select组件 mode='multiple' 点开后选择一个，浮层关闭了，想再次选择还得再次点击打开

怎么实现antd官网Select组件的默认交互效果，打开一次，可以多个选择，点点点，而不是点完一个就关了。...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Program to write and decode coded messages glitches out when textarea is substituted for input type = text

I have a program that generates and decodes secret messages using an encryption sequence and the message, the letters are ... seq.innerText = sequence; } </script> </html>...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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在一个fixed布局里有一个div超出滚动，但是top和bottom只有一个起作用(互斥),在如下代码

问题在一个fixed布局里有一个div超出滚动，但是top和bottom只有一个起作用(互斥),在如下代码 <div class='dialog'> <div class='dialog-cover- ... bottom: 59px; left: 50%; transform: translate(-50%); overflow-y: auto; }...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dataframe - Multiple coordinates get_elev_point in R

I hava another geodata question. I am trying to access the elevation data for specific points with the get_elev_point ... . Could you please help me? Much appreciated! Kamilla...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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询问关于yii2命名空间及config配置引入问题

yii2自建目录命名空间不生效，我知道需要在这文件引用前使用Yii::setAlias命令设置别名或者在config/main.php的aliases里设置，目前我尝试过在aliases或者项目index.php使用Yii:: ... setAlias相关函数，如果我想使用bootstrap.php配置是否需要在index.php进行配置或者引入就可？...

asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.1k views

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java - Error creating bean with name 'xxx' defined in ServletContext resource

I am new to Archibus and after installations when I restart TomCat service in Windows 10 get below ... util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) at jav...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python proto文件引入报错，求指教

syntax = "proto3"; package GameProto; import BaseProto.proto; // 引入BaseProto.proto message MsgWeaponSkillData { int32 skillID ... 错 public, string or weak expected, got 'BaseProto'...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.9k views

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PostMan UI Shows a Variable with a Strikethrough Text After Test

I run a PostMan query and receive a Bearer Token. The test sets the global variable named BearerToken as such: if ... , it works. What is the meaning of the Strikethrough?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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vim 仅在在一个 vimrc 中实现不同 filetype 不同映射

【出于某些原因，我不希望动 $VIM/ 里面的东西，用一个 .vimrc 完成所有配置】 " FtDetect augroup FtDetect au! BufRead,BufNewFile *.via setfiletype via au! FileType via ... 只在 .via 文件中生效？似乎由于我包了一层函数，<Buffer> 并没有用 ...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.4k views

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求助：急， el-checkbox-group 这个组件如何获取每次新增的数组？

elementui框架用的el-checkbox-group这个复选框组件，我怎么筛选出每次选中的数据数组呢例如：我在dialog中放el-checkbox-group这个组件第一次选中的是【A,B】之后我再打开dialog再继续选择C ,change事件的回 ... 是【A,B,C,D,F】，我就是想每次获取的都是本次选中的值以前选中的值不再此数组中...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

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小程序设置这个背景图片为什么没有铺满呢？

给的UI背景图没有错设置背景图片后左边总是有空隙背景图片为什么没有铺满呢？这是怎么回事？可以复制我的代码直接运行 <view class=" ... //aigou-file.obs.cn-south-1.myhuaweicloud.com/images/5/2020/12/GI8zYagF88SDqSqb1Ug1WSDNTYOUzw.png); }...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.8k views

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git the meaning of term "remote branch"

I type git checkout staging and a local branch staging is created, and in command prompt, it said Branch 'staging' ... ) the branch really in remote (another location) git server?...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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3.6k views

1 answer

在PHP中如何处理错误情况更优雅？

假设现在有一个查询用户信息的函数getUserInfo()，参数是userId，如果传进来的userId不符合格式要求，或者根据这个userId查不到对应的用户信息，这时候函数有2种处理方式：返回false或者null给调用者抛出一个异常以上两种方式哪种更好呢，为什么？有没有更好的错误处理方式？...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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