Hot questions

0 votes

4.9k views

1 answer

ruby on rails - Why is my HTTP Origin header not matching request.base_url and how to fix?

Hello this is my first post here! I have been trying to debug this issue for a couple of days but cannot figure ... but posts cause an error) Thanks for any advice in advance...

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

0 votes

933 views

1 answer

Java better way to delete file if exists

We need to call file.exists() before file.delete() before we can delete a file E.g. File file = ...; if (file. ... that we not need to copy our utils file in every other project....

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

0 votes

2.2k views

1 answer

vue3.0+ts中使用 ?. （es2020 可选的链接操作）和 prettier 导致多出空格的问题

vue3.0+ts中使用 ?. （es2020 可选的链接操作）和 prettier 导致多出空格的问题在使用?.时我想要代码是这样 loading?.value ? initPage() : console.log('false') 但是经过 ... ?旁不出现空格我认为在将来同时使用es2020和prettier的场景非常常见，解决这个问题很有必要...

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

0 votes

1.9k views

1 answer

node.js - How to clear the error while installing @ngrx/store?

This is the error I'm getting while installing @ngrx/store. Can anyone help to resolve this error ... ! C:UsersWelcomeAppDataLocal pm-cache\_logs2021-01-12T15_07_10_434Z-debug.log...

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

0 votes

3.0k views

1 answer

谷歌浏览器中设置文字超出显示... 不可用

设置了 text-overflow: ellipsis; 属性只显示... 了...

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

0 votes

709 views

1 answer

vue router的Cannot read property '$router' of undefined"问题

这是debug时候看到的好像是有东西吧然后走下去就报错了下面是代码里的这是什么问题呢补充一下, 刚才的新发现把this给另一个变量赋值, 她竟然是undefined 用鼠标把this圈起来看的话它又是有内容的...

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

0 votes

996 views

1 answer

postgresql - Returning Table with null value causes error

I have a simple function that has optional parameters. When I leave out a parameter, which should just default to null, I get an ... But I don't want 0 to be returned, I want NULL....

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

0 votes

1.0k views

1 answer

reactjs - Google-map-react. How to know if the fetched location belongs to northEast and southWest OR northWest and SouthEast

I've been struggling to use fitBounds() on google-map-react. I'm using it like this: nw:{ lat: pickup.latitude, lng ... on the map. Please advise on how can I dynamically fix this?...

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

0 votes

2.6k views

1 answer

python - Plot peak shift from LED spectrum

I'm working on a code to track a shift in spectrum of an LED over 100 scans. I import my data as an ASCI file. Using ... .xlabel('scans') plt.ylabel('Peak shift') plt.show() ```...

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

0 votes

799 views

1 answer

表单radio组种嵌套一个input，如何在选择radio之后，清空input

现在在做一个表单，其中有一项，本身是radio3个选项，然后还有一个“其他”，即一个input。例如 QuestionRadio [1]A [2]B [3]C [4]其他:_____ 现在的问题是，如果用户先点选了其中一个radio，input也会显示radio的内容。因为属性里是同一个value值。新人经验不足，请问这种情况，怎样来处理比较合适。...

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

0 votes

679 views

1 answer

How to prevent function in R from updating values based on last variable specified?

I have the following function: stats <- function(data) { maxDay <<- max(data$TotalGB) avgDay <<- mean( ... of just doing something like user1$avgDay but this returns in NULL...

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

0 votes

1.3k views

1 answer

android - How to receive calls/messages real-time when the application is closed

I am developing a VoIP application with SIP as the signaling protocol. I have implemented the messaging and calling ... . Could anybody please point me in the right direction?...

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

0 votes

3.1k views

1 answer

haproxy怎么修改或者重写响应头的cookie

前因是我有个页面a,还有个页面b,b页面以iframe的形式嵌入在a的里面,根据chrome80以后的标准,默认不能跨站点追踪cookie,也就是说,在a页面里面,b页面的cookie写入不进去,为空可以配 ... 原set-cookie字段的属性值后面添加;secure=true;sameSite=none这样的,只有这样,cookie才能被浏览器写进去...

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

0 votes

1.9k views

1 answer

一道腾讯笔试题，求教

Employee 表包含所有员工信息，每个员工有其对应的工号 Id，姓名 Name，工资 Salary 和部门编号 DepartmentId +----+-------+--------+-- ... employee e, department d where e.departmentId = d.id ) t1 where s_rank <= 3...

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

0 votes

2.1k views

1 answer

C语言二维数组索引的问题？

我有一个二维数组，data[512][512], 现在有下面两种索引，为什么得到的值不一样？有没有比较懂的老哥？ data[1][1] *(&data[0][0]+513)...

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

0 votes

2.1k views

1 answer

vue中使用这个jquery没有效果怎么回事？

下面是我的代码 npm已经安装了jquery 可是我不太会用jquey 试了一下没有水波纹效果这是为什么？ <template> <div class="index"> <img style="width:700px;height:108px ... '); $(this).hide(); }); }); </script> </body> </html>...

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

0 votes

3.0k views

1 answer

正则匹配标签内的空格问题

我尝试用/(<.*?>)s(.*?)(</.*?>)/g 匹配 // 正则表达式 let rex = `/(<.*?>)s(.*?)(</.*?>)/g`; // 原字符串 let str = `<p class="ss" ><br> tab空 ... p>` 得到的结果是只匹配标签内的一个空格, 请问怎么实现标签内的空格都替换成 ? 呢? 在线匹配测试地址...

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

0 votes

3.6k views

1 answer

请教大佬，flask使用蓝图后，程序可以启动成功，访问路由时404

...

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

0 votes

3.4k views

1 answer

web - Get access to the one site with one account in two different computer

I have one account that access to my company' dashboard admin site. Now, I want to rent one more person that speed ... time, so can login two computer with one account per site....

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

0 votes

4.0k views

1 answer

TS + react ，设置别名vscode报错

webpack和tsconfig中都配置了，编译是可以通过的，但是vscode依然报红。...

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

0 votes

4.3k views

1 answer

The compiler is unable to type-check - SwiftUI

I'm trying to get used to the MVVM-Pattern in swift. So I was coding around a bit and I get this error again and again: ... () } } Would love to hear from you - Thanks in advance....

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

0 votes

3.5k views

1 answer

Anaconda的sypder，使用一天发现上传了400mb数据，是在上传什么？

如果用360禁止它的所有python进程访问网络，spyder1分钟后会直接卡死，就像强制你保持连接上传数据一样，还是说spyder不能脱机使用吗？请问spyder在上传什么？有没有办法关闭？是否有安全性问题？...

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

0 votes

3.9k views

1 answer

关于nodejs Sequelize的迁移文件管理问题

随着项目越来越大，Sequelize的迁移文件越来越多，/database/migrations 目录一打开一长串文件，看的眼花缭乱的。应该怎么办？...

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

0 votes

4.1k views

1 answer

Internet Explorer Automation with VBA input events

am trying to use automation in from Microsoft Access 2003 to control Internet Explorer 9 to complete a form using database data. The ... " type="text" value="" /> </span> Thanks!...

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

0 votes

3.9k views

1 answer

java - How to call shutdown on an ExecutorService that has been supplied to a CompletableFuture?

I am running a batch job every 15 minutes, where I get records for 5 different events and push them out to an API to ... e -> transform1()) .thenApply(e -> transform2()) } }...

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

0 votes

3.7k views

1 answer

how can change react native elements attributes inside of loop

I want use loop for create 8 button, and use difference state for each button, for example buttonOver1 for button1 and ... {i}</Text> </TouchableOpacity>) } return buttonItems; }...

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

0 votes

7.4k views

1 answer

authentication - Wordpress popup if login failed

Well I'm preparing for a project in my study. so please help me I have a page with a button to login, ... refresh and the popup with the wrong appears automatically. Thanks all...

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

0 votes

3.5k views

1 answer

关于echarts同页面多个图表出现的问题

现在一个页面上有三个图表，其中两个图表在一个盒子里：点击切换显示第三个图表：点歌图表会缩的很小，但是如果缩放屏幕，又会恢复正常大小：但切换到两个图表的那个盒子：之前的两个图表就会缩小，这是代码：，请问一下，大佬们，这个咋解决啊？？...

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

Categories

Just Browsing Browsing

Most popular tags