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1.1k views

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关于浏览器关闭操作js代码执行情况？

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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1.1k views

1 answer

Join fetch property of embeddable in hibernate

These are my mapped classes: @Entity public class Item { ... @ElementCollection @CollectionTable(name = "BID") private Set<Bid ... is there any way how to do this with this mapping...

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

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1.2k views

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vuecli4需要手动安装webpack吗？

vuecli4需要手动安装webpack吗？...

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

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1.5k views

1 answer

How to implement regressors in a Hierarchical Series in R, with the Fable package?

I am new to exploring the fable package, and I was wanting to implement Regressors in a Hierarchical Time Series model. How ... , in an ARIMA model. Thank you very much in advance....

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

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1.8k views

1 answer

python - Most efficient method of sorting permutations of a list using the minimum number of insertions, removals or transpositions

I have written a function that takes two permutations of a list as arguments, and then attempts to sort one to ... to this propsed solution of solving an old mathematical problem....

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

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2.1k views

1 answer

c# - ASP.NET Web Api Swagger string parameters error - no description

I am using Swagger UI to test my ASP.NET Web Api app. I added a class to allow operation parameters public void Apply( ... always show an error no matter what I put in the textbox....

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

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2.0k views

1 answer

javascript - How can I filter a generated list from a query from PHP in JS?

I have a list of files from my database. I'm looking for a way to query them. but I'm receiving an error, which is... it only ... ""; } else { b[i].style.display = "none"; } } }...

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

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2.3k views

1 answer

kafka java process consuming way large memory specially thread called org.springframework.kafka.KafkaListenerEndpointContainer#1-0-C-1

org.springframework.kafka.KafkaListenerEndpointContainer#1-0-C-1 consume large memory how to reduce it I'm using ... ))) userService.applicationExpire(kafkaEvent.getEventData()); }...

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

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2.8k views

1 answer

Problem with UNION result in Yii2 Framework

$select = (new yiidbQuery()) ->select('autori.IDAutore, autori.IParte, autori.IIParte, autori.Prefisso, autori.Qualificazione, ... : Michael (14) Which is the problem? Thank you...

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

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2.6k views

1 answer

julia - Why GLPK Solver doesn't verbose anything in JuMP?

I create this simple code as a demonstration: using GLPK using JuMP m = Model(GLPK.Optimizer) @variable(m, y[i=1:100], Bin) ... Julia 1.5.2, JuMP v0.21.5 and GLPK v0.14.4....

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

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3.0k views

1 answer

grafana - Filtering github project board cards by column

Is there a way to filter project board cards by column. For example I want to know how many cards are in every ... column. At the the moment I'm using grafana github data source...

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

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2.6k views

1 answer

下拉option可以设置最大高度吗，超出显示滚动条

下拉option可以设置最大高度吗，超出显示滚动条...

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

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2.6k views

1 answer

js属性方法里面的函数this指向

<div style="width: 100px; height: 100px; background:#ccc;" onclick="obj.a()"></div> <div style="width: 100px; height: 100px; ... 候 a里面的b函数this指向了window，而调用函数的时候a和b都指向window...

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

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3.1k views

1 answer

babel报错

这个是什么问题呢，这个是我的babelrc配置这个是我的package.json配置，现在他总是报错React未定义，是因为我安装那个babel-preset-react的原因吗？如果是的话，该怎么处理呢...

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

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3.3k views

1 answer

Overriding configuration in Cypress

Following the docs, there are several ways to override configuration variables: Default value The configuration file ... enumerate the last ways following its overriding capacity?...

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

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3.4k views

1 answer

c++ - How I can remove every line that starts with "//" on an std::string?

I have the following template std::string std::string myString = R"svg( <svg height={size} width={size}> <rect {...rectProps ... if (!isComment) { myFinalString += line + " "; } }...

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

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3.8k views

1 answer

javascript - ScrollTrigger with Next js

im trying to use ScrollTrigger with Next js : import { gsap } from "gsap"; import { ScrollTrigger } from "gsap/ ... got this error: does anyone have a solution for this problem...

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

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4.0k views

1 answer

java - Sonarqube Critical error: wait for JVM process failed Windows

I am new at using Sonarqube and I have an issue that maybe you can help with. I am working in a development ... error: wait for JVM process failed Can someone please help me?...

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

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3.8k views

1 answer

docker开发thinkphpy访问速度很慢

docker环境： centos8 bt面板 nginx php7.0 mysql5.6 应用为thinkphp5.0项目最开始怀疑是mysql在docker环境运行很慢，切换到远程数据库问 ... install/install_soft.sh 0 install mysql 5.6 WORKDIR /www/wwwroot EXPOSE 8888 80...

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

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3.5k views

1 answer

《算法4》 1.5 并查集算法分析

关于《算法4》1.5 并查集这边，涉及3个算法分别是： quick-find quick-union 加权quick-union 书中给出3种算法分析效率是: quick-find：在quick-find 算法中,每次 find() 调用只需要访问 ... 是，这三个算法，"N+3","2N+1","2N+1","lgN"，"cMlgN"都是怎么推出来的 ...

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

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3.8k views

1 answer

laravel-admin弹出表单select组件无法使用ajax搜索

Laravel Version: 6.2 PHP Version: 7.2 Laravel-admin: 1.7 $this->select('shop_id', __('wbq.shop_name'))->options(function ($id) ... >ajax('/api/shops') 在Form表单中是正常的,$form->select......

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

0 votes

4.1k views

1 answer

html - Are not all Emmet actions available in WebStorm?

I have Emmet enabled for WebStorm but it seems as though some of the abbreviations aren't working. For example: ... : Emmet HTML settings: Emmet abbreviation: Zen HTML settings:...

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

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4.0k views

1 answer

Two almost exact lists: If the column at the right have a specific value, then copy it at the left (excel)

I am working with excel. I have almost two identical columns and I need some of the different results of the column ... and Vlookup formula, but I have not reach a solution....

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

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4.3k views

1 answer

服务端渲染react-redux 报错 Invalid hook call. Hooks can only be called

### 问题描述 server error Error: Invalid hook call. ? Hooks can only be called inside of the body of a function component. ? This could happen for ... 解决服务端使用Redux的同构渲染问题问题已解决：解决方法看这里...

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

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4.2k views

1 answer

c# - is this string utf-8 encoding?

I get a string "xeex80x80xe6x9cx88xe3x81xaexe6x81x8bxe4xbaxbaxeex80x81xe3x80x9cMoon Loversxe3x80x9c - Wikipedia." I am trying to use ... convert it back to regular language string?...

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

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4.7k views

1 answer

请问如何实现类似Youtube上的评论区功能？数据该怎么保存？

如图所示，这是我们要做的产品的评论区，是针对一篇文章的评论这个原型基本就是Youtube评论区的翻版有几个重点： 1.评论是嵌套的，一层一层的 2.要记录每个评论点赞和点踩的情况，如果操作了，当前用户会看到自己对某个评论的赞和踩的状 ... 论） 4.同时可能存在多个人都在做操作，该怎么办？我看到这个有点懵，不知道怎么做，请各位大神帮帮忙，给点思路...

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

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3.9k views

1 answer

jmeter - Performance Test - Distributed mode with jtl and smtp listener

My test consists of tear down thread that sends the JTL report in the email through SMTP listener. This works fine when ... the test is done to send the final report through email....

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

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3.8k views

1 answer

react hooks - Confusion about useState Reactjs

When I call setMen(Men), The state changes. Why is that? Here's my code: const App = () => { const [Men, ... Add button and then on Add1. Why setMen(Men); will change State ?...

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

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