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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 - In react, when src directory symlinked from other directory within react app, throws rendor error

When we symliked src directory from somewhere, within react app throws error 'jsx' isn't currently enabled. If the ... /src' npm run start or yarn start Throws below error...

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

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reactjs - In react, when src directory symlinked from other directory within react app, throws rendor error

When we symliked src directory from somewhere, within react app throws error 'jsx' isn't currently enabled. If the ... /src' npm run start or yarn start Throws below error...

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

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macos - When debug, I cannot input it appears"Terminal will be reused by tasks, press any key to close it."

I totally follow the official documents but I just cannot debug anyway. In the meantime, every time I try to debug ... program] would like to access files in your Documents folder....

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

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c# - Multi-column indexes in Entity Framework 6

I am working on a legacy system using Entity Framework 6.0 and there was a new requirement to allow users to re-use a ... this in EF code first? We are using SQL Server 2019....

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

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C# Use Expression to get value from an object

the object cloud be any class, and I don't want to use reflection. this is my code: class Dog { public int Id { get; set; ... (t as Dog); it works well. can I fix it, thank you....

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

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requests.post 报Remote end closed connection without response

发起一个requests.post，向django请求数据，当django返回的数据量小时没问题，当返回数据量大时，调用接口的程序就会报requests.exceptions.ConnectionError: ('Connection ... end closed connection without response')) 请教下是什么原因，如何解决？...

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

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javascript - How can I get an ID from a FlatList keyExtractor and use it in a modal?

I'm trying to take an ID from a keyExtractor in a FlatList and give that ID to a modal so that it can show the ... time crunch and need to figure this out as soon as I can....

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

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angular小白，想实现一个效果，多次尝试后无果，请求帮助，谢谢

父组件有一个对象，就叫对象A，对象里面的数据用于渲染父组件视图，子组件有一个对象B，用于渲染子组件视图要实现的效果就是：在子组件界面上编辑对象B的数据（就像修改个人信息一样），再在子组件.ts中监听对象B里面的每一 ... 变化后面改变值的时候可能也会触发检测机制 angular小白一个，没有参透angular，实在想不到其他的实现办法，请求大家的帮助...

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

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python - RuntimeError: Exception ignored in: <function _ProactorBasePipeTransport

I am using aiohttp, asyncio and codetiming to make concurrent requests. I've recently upgraded Python to version 3.9. ... 'Event loop is closed') RuntimeError: Event loop is closed...

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

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JavaScript/ES6如何简写这段switch代码

numberTree: [ 10000000000000, 18900, 15700, 12500, 9300, 7700, 6100, 4500, 3700, 2900, 2100, 1700, 1300, 900, 700, 500 ... me.Total >= this.numberTree[15]: this.treenum = 4; break;...

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

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class - Python dict unpacking operator not unpacking string in constructor

I am creating a small app using socketio in python on server side and JS on client side. For one of my ... Java / JS background. Any suggestion would be appreciated. Thank you...

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

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331 views

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go语言中的匿名函数执行顺序

预计执行结果： sdd hello world, sdd 实际执行结果： hello world, sdd sdd 不明白其中的缘由，不应该先执行匿名函数吗？...

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

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560 views

1 answer

vuetify 轮播图前进和后退按钮在一起

这俩箭头在一起怎么解决...

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

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144 views

1 answer

amazon web services - Lambda Function to create a Launch Template

I'm new to AWS and trying to create a lambda function to create a launch template daily. So we have a ... completed and also delete the old launch templates after certain days?...

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

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464 views

1 answer

微信群发图文消息怎么突破每月4次限制？

最近要做微信视频号，上面挂载的图文链接必须要群发后的才能识别，但是需求量比较大，一个月一个用户4次根本不够，我看有的平台可以生成很多群发后的链接，请问是用的什么方法呢。而且都是短连接，正常获取图文素材的接口都是长链接，长链接在微信打开后重定向的才是那个需要的短连接...

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

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322 views

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npm run build:prod 编译后报错

npm run dev跑起来没问题，build打包后报错了...

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

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230 views

1 answer

spring boot - REST calls in angular with Request hidden

When making calls to my api from angular the data that I send to the requests can be seen in the inspect network of ... password that I have set, how would I hide this information?...

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

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378 views

1 answer

react hook 怎么值没变呢，应该怎么处理？

...

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

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364 views

1 answer

变量无法赋值数组是为什么？

如图该处变量对象、字符都能赋值，就是数组不能，这是为什么？...

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

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230 views

1 answer

Excel, dynamic referencing dates

I'm struggling to implement a dynamic reference within excel when using dates. The formula I'm using works with other ... find any sort of upload button / link on stackoverflow....

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

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302 views

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python 3.x - How to get over a OpenModelica solver failure?

Running the simulation from OMedit works just fine. But, when I export the model as FMU to a python script thru the ... as FMU using the Dassl solver. Could anyone help me?...

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

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143 views

1 answer

html - How accessible is it to nest multiple tags inside an anchor tag?

Is the following HTML accessible? <a id="myClickbaitArticlePreview" href="someUrl"> <h3>Amazing lifehack! Doctors hate him! ... title, which in many cases may repeat the content....

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

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409 views

1 answer

ffmpeg通过管道拉取，10秒延时问题

目前需要有个需求， ffmpeg一个命令先处理两个画面合并成一个，然后传入到管道，然后另一个ffmpeg命令从管道 ... zerolatency rtmp://**.com/**?auth_key=1601111160-33c4b61b7e91410e8234a85b5f892c90-0-e2aa796976c7739ce9a4ab86546b86e1...

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

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313 views

1 answer

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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220 views

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jest如何可以不验证项目的.babelrc文件

项目逐渐庞大，目前需要引入jest，但jest会和项目原有的.babelrc配置冲突，所以我在寻找运行测试时忽略读取.babelrc的方法...

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

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267 views

1 answer

如何使用Echarts 实现下面效果？

有实现过的案例吗？求大神赐教。...

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

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求教，这个问题怎么实现。

通过一个输入框，输入一个自定义的数组，例如1，4，5，23，2，17，24，10000000。请把他按照中间高两边低进行排序，最后的结果是1，4，5，23，10000000，24，17，2，算法越准确越好，请注意左右翼数据数据的平衡性...

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

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