Recent questions in Technique[技术]

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js中多个时间，怎么取最小值

['2020-9-1','2020-9-2','2020-9-3'] 怎么取最小的时间...

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

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729 views

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tensorflow - How to load a model in Google Apps Script

I have been tasked to create a machine learning model that runs on Google Cloud. I have seen the following links ... in a spreadsheet/SQL for admin users to review regularly....

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

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307 views

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statistics - Reordering groups of rows in R

I'm doing some user studies and everyone is given parts in different orders. The data looks a little like this. Currently importing all ... 5 Question 2 2 5 1 2 Question 3 1 6 2 9...

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

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datatable - Is there an R function to keep all rows even if criteria not met?

I have a data table of teams data by number of players by Region and want to copy to an existing spreadsheet that logs by ... MD 0 where you can see AR and MD pulling in 0s....

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

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python - Concisely write vector expression in numpy?

Say I have two vectors: v1 = [1,2,3,4], v2 = [4,5,6,7]. I then wish to compute the expression ... can be done much more concisely. How would you write this mathematical expression?...

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

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118 views

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javascript - Using async/await with a forEach loop

Are there any issues with using async/await in a forEach loop? I'm trying to loop through an array of files and await on ... I just wanted to ask if there was any issue with this....

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

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TO change a single row filed to 1 and all other to zero codeigniter

can any one please provide the codeigniter equivalent of this above code UPDATE table SET 'status_field'=IF(id=4, 1, 0) ... the specified row (with id=4) sets the status_field to 1...

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

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请教一下nuxt的问题，使用npm run dev 后，访问路由会中途访问不通

我搭建了一个nuxt项目，使用npm run dev 启动后，通过浏览器访问，一开始页面还流畅，可以过一会儿后路由跳转突然不行，浏览器一直在转，也没有请求后台也没报错，不知道是什么原因？请高手解答下...

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

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js判断长度大于18，小于5，怎么判断。

我想粗略判断一下身份证，就只是这样判断，条件是长度 >18,长度<5，都是不正确的,其他长度都算正确。 var a = '123456'; if(a.length>18 || a.length<5){ alert('身份证号码不正确'); }else{ alert('身份证号码正确'); } 貌似不灵，长度大于5，小于18的，也认为正确，该怎么写呢。...

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

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168 views

1 answer

javascript - My question is on opening two for loop on mutli-thread

How the folllowing for-loop will be applied to mutli-thread? for (int i = 0; i < 5; i++) cout << i for (int j = 5; j < 10; j++) cout << j Will I use classes to open it?...

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

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这种元素模块交界的地方的border-radius效果怎么做？

点击哪个临近的两个元素就会有圆角这种效果要用js控制吗...

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

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183 views

1 answer

js数组对象去重

let arr = [ { pk:'1', name:'张', age:'13' }, { pk:'2', name:'张', age:'23' }, { pk:'1', name:'张', age:'13' } ] 有什么快捷的方式可以去除数组里一模一样的对象吗？对象1和3是一样的...

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

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466 views

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eclipse 文档注释中文显示缩进不对

eclipse 文档注释中文显示缩进不对...

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

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459 views

1 answer

javascript - How can I pass variable into an evaluate function?

I'm trying to pass a variable into a page.evaluate() function in Puppeteer, but when I use the following very simplified example, the ... ); } finally { // browser.close(); } })();...

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

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x86 64 - Is it possible to run 64bit code on 32bit OS with 64-bit processor?

We can transit from 32-bit to 64-bit mode on 64-bit OS changing CS register to 0x33 and align stack accordingly. Is it ... 32-bit OS, which is different from 0x23 on 64-bit OS....

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

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207 views

1 answer

Html5中，如何解决IOS弹性问题？

我也不太懂怎样描述，就是只会出现在IOS中。 CSS中增加了overflow-x: scroll; 就会让整个页面拉出空白，并且有弹性。导致页面有点凌乱。...

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

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node.js - How do I import an existing NodeJS project to NestJS

I have a large and complex NodeJS project, with ejs files and assets scrambled inside - it's a bit of a mess. It was ... ). Does that make sense? Any ideas how it can be done?...

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

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270 views

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google chrome os - Chromebox running application display device MAC or serial no. in kisok mode

I want to have a quick way to see the MAC or serial no. while running the kisok App instead of checking in the ... it would be great for us if possible. Thanks. Regards, Alan...

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

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237 views

1 answer

Pass Parameter in Ajax URL

I am trying to pass parameter in below ajax url function endprogress(){ $("#surfbar").html("Please wait..."); ... Expected and identifier instead saw ',' how can I resolve this...

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

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440 views

1 answer

求助，python爬虫解析html定位不到标签

想定位class为j_th_tit 的"a"标签，但是返回为空，是哪里写错了吗？万分感谢，代码和截图附上 from bs4 import BeautifulSoup import urllib. ... ") get_href_list = bs.find_all("a",class_="j_th_tit ") print(get_href_list)...

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

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1 answer

Steps for automounting Encrypted LVM in debian using preseed configuration file

Issue: Cryptsetup Encryption key creation command halt in the preseed stage. Command: echo passphrase | cryptsetup luksAddkey ... command or script that will make my job done....

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

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flutter - The superclass 'Bloc<Event, State>' doesn't have a zero argument constructor

If I create a constructor to call super, I have to pass an argument to the BlocProvider's create property ... => ShowCounterState(counterValue); Appreciate your help in advance....

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

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391 views

1 answer

Shiro 分布式Session 使用Mysql 来存储解决思路 ?

Shiro 作为权限控制框架, 现在因要拓展多服务分布式 ,要求使用 Mysql 作为Seesion 存储解决方案 , 网上90%都是Redis , 关于Mysql的很少而且大多都是错误的, 恳请各位大佬给个思路 , 谢谢~~~...

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

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1.3k views

1 answer

snowflake cloud data platform - SQL query to find ids in the same table but different timestamp events (cohorts)

I need to write a query that gives me the count with the following logic. The example below shows that ACCOUNT_ID 123 signup ... :timestamp_ntz ) < CURRENT_DATE()) ) GROUP BY 1,2 )...

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

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514 views

1 answer

vim 中查找不以 ab 结尾的行

我用的是 /[^a][^b]$，但 [^b] 似乎没起作用：只要一行倒数第 2 个字符是 a，就没有被 vim 匹配——我的正则出了什么问题？...

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

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239 views

1 answer

即时聊天的聊天列表是怎么设计的

自己做一个聊天工具,聊天列表页,第一次进来可以读取聊天记录,后面有人发消息过来的时候,如何定位到当前聊天那个人...

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

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302 views

1 answer

junit 5 - Unable to run multiple discoveries at a time

My team developed a custom runner for junit tests. Now I'm working to improve it's performance and trying to create few ... be cool to hear from you or someone from junit team :)...

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

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414 views

1 answer

如何解决10.15下“login: login: Could not determine audit condition”？

（题目字数所限）如何解决macOS版本10.15下 login: login: Could not determine audit condition ？由于之前需要在根目录写文件，于是关闭了SIP，然后开启了root权限，后来在配置maven的时候需要一 ... 请问现在在不重置系统的前提下，还有什么方法可以恢复terminal的正常使用吗？十分感谢！...

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

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