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    I have a carts table where column is----> "id", "user_id", "product_id", "quantity". See the image here is ther products table When a user add item into cart ... by the user. How to do that? Here is the cart model Here is the product model...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    there is two things i can't understand: 1-What does "nonstring - with excplicit base" means? 2 How to solve it? you can check the code and the error it appears ... its obvous im not a python guy but im trying to do smth from time to time....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I need switch the primary SMTP address in AD in bulk from users of an certain OU. The challenge; User1 smtp:[email protected] smtp:[email protected] SMTP: ... I explain myself good enough. Thank you in advance for any coming help ??...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm having a problem with this? How to solve this error: The GET method is not supported for this route. Supported methods: POST. <form ... /{term_one}/edit | term-one.edit | [email protected] | web | Route File...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    If you have table like this: Name Data type UserID INT StartDate DATETIME EndDate DATETIME...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm having some issues deploying my web socket app online. I've used Heroku to host the server and Netlify for the client. I'm getting the below error when I try ... process.env.PORT || PORT, () => console.log("server is running online"));...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I have an excel file with a form, when the form is filled correctly then an OK button can be pressed. The button function is to create a file name, copy ... I simply do not have formulas. PC is recent, 16GB ram, office is updated. Thanks...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm implementing OIDC authentication functionality with Existing common authentication server SPA for clients Resource server (My application API) A user goes to SPA ... there is no automation https://github.com/firebase/php-jwt#using-jwks...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    What matcher would I use in Jest to test for the absence of a property on an object. My MUT returns an object, say {userName: 'Joe'}. How do I ... should fail, because the password property is there (even though it's value is undefined)....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    While on week view in React Big Calendar, the label in the toolbar shows the range of dates, for example "January 10 - 16". How can I get the year? Below is the modified ... .view.bind(null, 'agenda')}>Agenda</button> </div> </div> ); } }...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I tried to use the header() function to redirect after user authentication on GAE. And I tried to get some ideas on GAE documents but cannot seem to find anything about ... >Main Page</h2> </body> </html> And the problem showed like this :...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    正常运行H5页面是这样的 运行微信小程序是这样的 报错信息 请问下这种情况怎么处理?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    I'm on Ubuntu 20.04 and with g++, I can compile a code with pthreads in it using 'g++ -o file file.cpp -lpthread'. However, I can't do ... . How can I integrate the pthread support to CodeBlock's compiler, so that it supports pthreads?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.1k views
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    我们现在有一套副本集的mongodb,是在两地的机房,由于资源有限, A地有1个primary和1个secondary, B地有2个secondary和1个arbiter, 以前从来没考虑过两地分布似乎不管怎样都不算是高可用,因为必然有一边是少数节点 现在B机房计划性搬迁,就面临这个问题,B地直接下电,A地2 ... 一个Arbiter2,然后remove掉B地的arbiter,这样B地下电是不是就完全没影响了 另外想请问下两地部署的情况副本集有什么最佳结构吗? 感谢 ...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1 answer
    开发阶段 我没有打断点 或者 debugger 但是只要后端接口 返回 504 就会自动启动调试 请问这是怎么回事,我需要怎么解决...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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444 views
1 answer
    点击x关闭浏览器,浏览器是否会等待js同步代码执行完成,然后再关闭? 如果不等待同步代码执行完成 那么浏览器是如何处理未执行完的代码? 那么onbeforeunload事件岂不是没多大意义?...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    i was searching which are the differences and the advantages/disadvantages of using one or another but i couldn't find anything. Is it justified to add another library or simply use the AntDesign form validation? Thanks...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    如题,请问各位大佬有解决方法或者知道原因吗,就是一个单纯的页面,点击input框聚焦的时候就返回到最顶部了。...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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605 views
1 answer
    I want to develop a WebRTC service. Remote classroom One teacher and several students attend the class. Share each other's screen Voice chat, Share your webcam ... provides UWP SDK? I am very sorry that this is not a technical question....
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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853 views
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    刚刚学习java文件流的输入输出,请教各位大神,已知输入文件流byte[]的编码,实现将其转码为UTF-8编码并输出为文件流[]. public static byte[] filebyteToUTF8(byte[] inputFilebyte){ }...
asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.6k views
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    I'm trying to add data from a .txt file to an empty table in postgreSQL database with pgAdmin. The .txt file uses '|' as delimiter. For example 321|hello/hi| ... : line 100: "321|"hello" SQL state: 22P04 How to fix this error ? thanks...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    之前使用 vue init wepack project-name 建立了一个cli2的脚手架,src目录里没有pages 写了几个功能界面都是在components文件夹中以组件的形式存在 伴随着项目的变大,产生了几个疑问 1.登录注册浏览等等的界面功能都是以VUE组件的存在,如何才能修改成page的方式存在? 2.每次新增一个组件, ... 假如就按照目前cli2组件的方式,将登陆注册浏览....全部写组件后 是否符合规范,项目完成后打包上传到服务器上,会不会有什么问题?...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.3k views
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    // 接受服务器消息 function getServerMsg() { if (!exitflag) { $.ajax({ url : "../hf/chat/get", type : "post", data : { sessionId : sessionId }, ... .insertLeftText(body, common .getFormatDateByLong(Math.round(msgnode.time), "hh:mm:ss")); } } }...
asked Jan 25, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.6k views
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    Whenever I select a item from my react native picker select component it automatically selects the value before hitting done. As soon as your finger lifts of the ... MainButton name={"Submit"} onPress={submitPress} /> </Gradient> ); };...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.5k views
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    在 PHP 8.0 以前的版本,包含 DDL 语句的事务只是会触发隐式提交(应该算是 MySQL 的功能,并不是 PHP 的特性),事务无法回滚,并不会抛异常 而8.0版本 commit 时会直接抛异常 There is no active transaction ... ->exec($sql); $conn->commit(); } catch (Exception $e) { echo $e->getMessage(); $conn->rollBack(); }...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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    在做app 逆向返回的是protobuf 序列化的内容,不想去app 中找规则proto内容了 有插件就好了,直接出结果数据,二进制打印都是乱码...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.5k views
1 answer
    page.wxss @font-face{ src: url({{dlflie}}) ... } page.js Page({ data: { dlflie: 'xxxxxxx.woff' },... }) wxss中能不能直接使用js中的data?...
asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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