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1.3k views

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// some.js Object.clone = src => { ... } module.exports = { ... } // REPL > require("some") { ... } > Object.clone undefined 咋办...

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

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341 views

1 answer

android - How to define a SeekBar's minimum value, maximum value and range? Is this done in the XML layout or do I need to define it in java?

How to define a Seek Bar's minimum value, maximum value and range? Is this done in the XML layout or do I need to define it in ... .setText(pval + "/" + seekBar.getMax()); } }); }...

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

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394 views

1 answer

axios拦截器为什么会出错？

写了一个处理错误在拦截器中： axios.interceptors.response.use( response => { if (response.status != 200) { console.warn( response.data.msg || `请求${response. ... 何解决更新：问题似乎不在拦截器中我去掉拦截器还是会报一样的错：...

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

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367 views

1 answer

一段时间后会连不上mysql数据库

我部署之后，过了段时间就连不上mysql，在服务器通过mysql -u root -p，输入密码之后报错ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/ ... 2个项目，有一个使用sequelize，不知道是不是它的原因，请问有人知道这是为什么吗？...

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

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391 views

1 answer

es 中的proxy 调用对象中的方法 ...args

最近在学习es中的proxy代理的操作发现如果我定义了一个对象为： var phone = { number: 10068, changeNumber(nu)?{ this.number = number } } 之后再使用Proxy代理 var proxy = ... 方法，但是不能理解调用方法中的那个...args是怎么传值过去的，希望可以解答一下?...

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

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148 views

1 answer

为什么http请求的withCredentials不针对同源请求？

为什么只有跨域请求需要withCredentials 难道同源请求都不需要带cookie给后端么？...

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

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219 views

1 answer

Uncaught Error: Class 'SwooleCoroutine' not found

安装启动报错: Uncaught Error: Class 'SwooleCoroutine' not found 小白一个不明真相...

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

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487 views

1 answer

javascript - npm serialport binding not working with tsx file

Binding error serialport module with typescript in Electron-React App I am building an electron app using react. While ... Error Stack js file fetching serial port App.tsx file...

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

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223 views

1 answer

Converting object to array format with Javascript

I have a data object like this: { "backgroundColor": [ "#E5700F", "#DA830F", ], "data": [ 26, 10, ], } I want to ... "#DA830F", "data": 10,}, ] how to achieve it using javascript?...

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

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629 views

1 answer

After using TightVNC, cannot copy/paste between Windows applications

This is very similar to this, this, and this question asked here on SO and elsewhere. But differs significantly. I ... session. Anyone else seen this? Thanks for reading, Paul...

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

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174 views

1 answer

c - CS50 pset4 filter “edges”

When I run a image through my edges code for example : Input image, Output image I've tried to debug my code, but I still ... 5 hours but i can't figure out, what i'm doing wrong?...

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

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305 views

1 answer

javascript - What does "./" (dot slash) refer to in terms of an HTML file path location?

I know ../ means go up a path, but what does ./ mean exactly? I was recently going through a tutorial and it seems to be ... all? Can I just not use it if that's all it's doing?...

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

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270 views

1 answer

html - Sticky div remain in top corner permanently

I have a 'Book Now' button that sticks to the top of the viewport at 10px gap. The parent element has height of 100%, ... : 10px 15px; transition: .2s; -webkit-transition: .2s; }...

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

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584 views

1 answer

java - Gradle refresh snapshot dependencies does not work

The Stackoverflow contains some questions regarding this issue but unfortunately, nothing works for me. For example, I read this ... in the nexus repository. Gradle version: 6.6.1...

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

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366 views

1 answer

什么是 char FAR* ?

什么是 char FAR* 和 char FAR* FAR*?...

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

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594 views

1 answer

flutter - Making soap bubble input selection (like in apple music)

The goal is to develop a widget where I can pass an array of strings and it generates the soap bubbles like in the ... video I am talking about: https://youtu.be/ydYah_BXt9A?t=29...

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

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456 views

1 answer

求助：替换正则匹配的第N个字符串

字符串如下，需要使用正则匹配第N张图片删除它，这里只列举了3张，我写了一个正则没成功： ` var text=$('#needmessage').val(); const r1=/[img.?].?[/img]{n}/gi var btr= ... </textarea> ` 有人建议使用$1,$2,但是我发现正则中有小括号无法使用而且是删除第N张 ...

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

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506 views

1 answer

python - i am getting an error in my face recognition code while excuting it in pycharm, have also tried executing it on terminal

My face recognition code is getting and error. The error is as follows: Traceback (most recent call last): File "C:/ ... if k == 27: break cap.release() cv2.destroyAllWindows()...

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

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1.2k views

1 answer

validation - Validate duplicate email entries in service ASP.NET CORE MVC (c#)

I want my Edit method in my CRUD page to not allow duplicate email entries. If a user tries to enter an email that ... , Email = email }); await _context.SaveChangesAsync(); } }...

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

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416 views

1 answer

python - AttributeError: 'list' object has no attribute 'variables'

I'm trying to implement a semidefinite programming problem in cvxpy. The optimization variables are complex. I'm new ... AttributeError: 'list' object has no attribute 'variables'...

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

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405 views

1 answer

对同一 viewset 的不同 action 方法不同的 authenticaltion 是否可行？

大佬们，我有一个需求就是我有一个 viewset 我想使用 post 方法的时候使用 JWT 认证，而使用 list 和 retrieve 方法的时候不使用认证，各位老哥有办法 ... , *args, **kwargs): print(f'1{self.authentication_classes}') return Response('ok')...

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

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546 views

1 answer

EasyRTC command questions

I am attempting WebRTC using the EasyRTC API. I find the documentation of EasyRTC a bit confusing and fragmented. ... greatly appreciate it. I thank you in advance. Regards....

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

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545 views

1 answer

rollup打包不支持async语法吗？

入口文件index.js const { determineRepoDir } = require('./expo'); // const { determineRepoDir } = require('../lib/profile'); determineRepoDir() ... 件里面的代码就会被打包起来，否则不会打包，只会保留require的代码...

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

0 votes

826 views

1 answer

如何在地址栏输入url直接访问接口？

前端代码里通过网络请求能访问到接口，但是为什么直接在地址栏里输入接口地址不行呢...

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

0 votes

334 views

1 answer

原生js创建两层div

使用原生js创建一个 <div class="a"> <div class="b"></div> </div> 这样的元素...

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

0 votes

675 views

1 answer

java开发bug问题：GitHub授权登录无法获取授权账号信息？

大佬你们好，我是起武小白最近学习springboot实现论坛项目时第三方授权登录遇到bug，求解决问题：使用第三方GitHub授权登录无法获取授权账号信息的可能原因？明明已拿到access_token，却无换取GitHub账号 ... 参数信息去获取账户信息，却无法获得这就说明access_token有问题，可我不知道问题到底出现在哪里...

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

0 votes

684 views

1 answer

前端3大框架实现这样的拖放效果

我前端框架只看过 Angular ，最好能用 Angular 实现下面的效果其次的选择是 vue ，最后是 react 。提供思路或者成品演示都可以，万分感谢...

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

0 votes

809 views

1 answer

DolphinDB C++ API 编译报错对‘SSL_CTX_free’未定义的引用

我根据教程在linux操作系统上使用DolphinDB C++ API 编译main.cpp的时候遇到这个问题: g++ main.cpp -std=c++11 -DLINUX -D_GLIBCXX_USE_CXX11_ABI=1 - ... /ABI0 -o main 依然报的一样的错误，C++API是今天刚从GitHub下载下来的...

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

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