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arduino - Firebase Cloud Function Post Request From ESP8266

I am trying to call firebase cloud function from ESP8266, it is working fine from postman but I am getting http response ... }else{ Serial.println("Error in WiFi connection"); }...

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

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model view controller - Forms inside foreach loop MVC

I have situation where MVC controller has sent list of records. Those records are displayed in view in order ... Details",new { transferHeaderId = update.TransferHeaderId }); }...

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

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reactjs - Jest cannot find module @env React Native

I'm currently facing some problem I'm using in my react native app https://github.com/goatandsheep/react-native-dotenv for handling .env. ... /.*|\.(test|spec))\.(ts|tsx|js)$" }...

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

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vue router的Cannot read property '$router' of undefined"问题

这是debug时候看到的好像是有东西吧然后走下去就报错了下面是代码里的这是什么问题呢补充一下, 刚才的新发现把this给另一个变量赋值, 她竟然是undefined 用鼠标把this圈起来看的话它又是有内容的...

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

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javascript - Hide swiper js navigation buttons(left and right) when no more images are present in the particular direction

How can I hide swiper js navigation buttons(left and right) when no more images are present in the ... right direction then the right navigation button should get hidden....

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

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python - "Message: stale element reference: stale element not found" when trying to get the element using global method define in Javascript

This is the code on .ts file export class UploadController { readonly fileSelectorOverlayRoot = document.createElement( ... : stale element reference: stale element not found...

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

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sql - bulk delete from a many-to-many relation table based on a WHERE condition that checks ids in two lists

Assume that there is an employee table and a project table. A relationship table emp_proj contains following column: ( ... , would delete all rows that contain the concerned pairs....

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

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下拉option可以设置最大高度吗，超出显示滚动条

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

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vue 源码分析事件指令

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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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Deactivate conda base in Ubuntu for Windows

I am using Windows Subsystem for Linux (WSL). When I open the terminal, it is automatically in the conda base: ( ... not use the correct technical terms. Thank you all in advance....

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

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python - How do I limit the longitude extent in Cartopy's LambertConformal and keep the conic looks?

I would like to produce a Lambert Conic plot focused on Europe. I can do the following: import cartopy.crs as ccrs ... two meridians, and an arch at the lower latitude limit....

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

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maven无法启动tomcat，报错

[INFO] Scanning for projects... [WARNING] [WARNING] Some problems were encountered while building the ... versions might no longer support building such malformed projects....

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

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

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antd 的Modal组件如何设置多层弹窗多次点击出多层窗口

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

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How do i generate and sum up random numbers from an array in javascript and python

I have a function that takes an array and a target number. The goal is two generate any two random numbers from ... firstValue]) numIdx.push(numbers[secValue]) return numIdx } } }...

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

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java - How do you make a conditional statement return true when only one condition is true?

I need to make an if statement in which its value depends on N other conditions. Particularly, it needs to return ... this (that is, without even implementing a whole method)?...

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

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进度条nz-progress的底色不支持自定义吗？

进度条nz-progress的底色不支持自定义吗？...

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

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websocket连接失败后多久会触发error事件？

问题描述 websocket连接失败后多久会触发error事件？这个时间有没有方法可以设置问题出现的环境背景最近项目中用到了websocket，但是连接地址的端口不确定，因此前端需要从某个端口（例如ws://127.0.0.1:9000）开始 ... 不能保证在20ms内（可能与电脑性能有关？）这种方式是否可行呢，或者定时器的时间设置为多少比较合适 ...

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

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python - Website slightly changing its UI when accessing from selenium - Chromedriver

I'm having a problem when accessing websites using selenium and chromedriver (even though I implemented successfully all the ... pasted it) Does anyone have any suggestion for me?...

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

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php - How to enable Select Box when edit button from jquery-tabledit is clicked?

I have a table with a select box and a dropdown box that I want to be disabled by default (for safety purposes). Now, when ... => User [email] => [email protected] [action] => edit )...

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

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手写eslint插件，检测如下代码

xxxPromise().then(()=>{}).catch( (e) =>{ console.log(e.message) }) 检测在 xxxPromise 内使用 e.message的情况...

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

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ruby on rails - Beekeeper need your help for relationship choice

I'm a beekeeper and writing an app under RoR to follow my beehives. Here are the main models that I have ... is the right relationship between hives and colony ? Thank you,...

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

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java 超长字符串存取

请问如何压缩或加密超长字符串，以节省数据库存储空间，需要可以解密？如一些文章内容之类的，内容很长，数据占用空间，也影响查询效率，尝试过使用 md5/res加密，都提示字符串超长期望可以通过压缩（或者加密）方式减小字符串长度，以便存储，提高性能，同时要可以解压（或者解密）出原内容来使用...

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

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egg如何配session的samesite选项？

文档中指名了egg-session引用了koa-session并且 Support all configurations in koa-session. 于是我按照koa-session配了samesite： session: { key: 'DSESSIONID', ... 新的问题：没有https支持的网站如何绕过samesite的限制求大神指导...

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

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python - Is there a quicker way to filter a Pandas data frame based on the number of recurring values?

Currently I am using the following function; df['i'] = df.groupby(['i']).filter(lambda i: len(i) > 500) ... group can be to 250 allowed the program to execute within 30 seconds....

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

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华为OBS存储写入文件流异常

java.io.IOException: input/ouput erroe 只抛出了这一个错误...

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

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Install arm-elf-gcc on MacOS

I'm trying to install arm-elf-gcc on MacOS by MacPorts. Here is the install command sudo port install arm-elf-gcc ... sudo port install. How can i fix this problem, Thanks....

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

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