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609 views

1 answer

How to apply interfaces that define multiple constructors in Typescript?

I've been searching for a way to implement multiple constructors of a class. I found this Stackoverflow question ... "new Array(input)" and apply this ArrayConstructor interface?...

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

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1.0k views

1 answer

python - PermissionError: [Errno 13] Permission denied: 'C:\Windows\System32\drivers\etc\hosts'

I am trying to run a program that needs to access to the administrator folder but my administrator folder needs a permssion in ... .truncate() print("Fun hours...") time.sleep(5)...

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

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662 views

1 answer

mysql 9月份200万条数据，查询慢怎么解决呢

CREATE TABLE report_device_working ( id bigint(20) NOT NULL AUTO_INCREMENT, device_id varchar(128) COLLATE utf8_unicode_ci NOT NULL ... br.tenant_id ='5VRJD01' AND br.flag_id = 0...

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

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921 views

1 answer

宿主机映射到容器内的文件夹如何删除

创建集群容器,宿主机映射路径./Cluster/server1/P1-node1到数据节点容器内部,在数据节点容器内创建数据库并存入文件,会在宿主机对应路径上生成一些文件比如./Cluster/server1/P1-agent/ ... batchJobs的创建用户改为创建容器的那个? 或者说,这个跟dolphindb没有关系,是docker这个层面的事情?...

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

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855 views

1 answer

Append result of CloudKit into array in swift

i declare the contact variable as an empty string array var contact = [String] () then I made a query to output ... self.present(alert, animated: true, completion: nil) return } }...

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

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845 views

1 answer

请教各位大佬element中table组件如何宽度自适应

如图，在缩小浏览器尺寸后table组件并不会缩小宽度，请教各位大佬如何去宽度自适应呢，在网上也找了找，有人说可以用position，除此之外有没有其他方法，请大佬帮帮忙 <el-table : ... > <el-table-column prop="address" label="转换率"> </el-table-column> </el-table>...

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

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724 views

1 answer

sql - Azure - Enable/Disable database setting for security purposes

We have certain security requirements in order for our app to go live within our orgainisation. We are using the ... clr enabled'; How to we update these settings? thanks....

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

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847 views

1 answer

lodash的._find和原生的数组的find有啥区别

lodash的._find和原生的数组的find有啥区别...

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

0 votes

637 views

1 answer

写一个方法，数据格式化处理

//原始数据 let times = [ { date: '2020/10/29', type: '1' }, { date: '2020/10/30', type: '2' }, { date: '2020/11/1', type: '3' ... type: '2' } ], [ { date: '2020/11/1', type: '3' } ] ]...

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

0 votes

707 views

1 answer

前端做网络拨号功能

如上图，能够点击拨号，实现拨打网络电话的功能。重点是在PC端，移动端我看到网上都有很多方法。大神们，有好建议嘛！...

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

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915 views

1 answer

git合并弹出需要提交消息解释这种合并是有必要的？

Please enter a commit message to explain why this merge is necessary. 如上，git pull合并经常会出这个问题，为什么会有这个信息弹出来呢？？虽然搜索网上的知道怎么解决，但是老弹出很烦人，想知道是为什么弹出来的...

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

0 votes

1.3k views

1 answer

seo - How do I direct all traffic or searches going to duplicate (or similar URLs) to one URL on our website?

I'll try to keep this as simple as possible, as i don't quite understand how to frame the question entirely ... be a simple explanation for this that i am completely missing?...

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

0 votes

1.3k views

1 answer

如何提取h5 video播放的每一帧数据

通过webrtc进行p2p通讯，A,B双端能正常的通讯了，我在B端怎么去监听A端推过来的数据并另存到其他的服务器去，不能录制，需要实时的获取到推流过来的数据。...

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

0 votes

1.8k views

1 answer

关于nginx报错和配置的问题

nginx.conf 如下配置为啥不生效 location / { root /usr/share/nginx/html/public; index index.html index.htm; } location = /abc { root /usr/share/nginx/ ... 第一次重启不报错了,现在又还是这样,这是什么原理啊,大佬们谁知道....

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

0 votes

1.9k views

1 answer

如何实现多表格的列宽记忆功能

现在有个SaaS软件系统，用户可以新增自定义表单，现在用户有个需求，就是希望拖动表格列宽后，能够缓存下来，下一次再访问这个列表时，能够记忆上一次的列宽我目前有想到两种解决方案：方案一，将拖动的后的列宽数据保存到后端：缺点 ... 缺点：不能跨客户端使用，而且经常新增删除表单模板的话，还会导致大量的垃圾数据产生请问有无更优的解决方案？...

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

0 votes

2.9k views

1 answer

Ansible: Combine 2 json object with with_item

I have the following playbook: --- - hosts: localhost gather_facts: False vars: arraylist: [] host_list: ["abc.cloud.com" ... [{"pb_os_family": "Linux"},{"pb_os_family": "Linux"}]...

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

0 votes

2.1k views

1 answer

怎么获取随机Token值

在爬虫：http://v.mp.uc.cn/video.html?uc_param_str=frdnsnpfvecpntnwprdssskt&from=media#!wm_cid=386439659430872064!!wm_aid=ee1fc01faa1e46758373d1b0186bd03a ... /v.mp.uc.cn/api/vps?tok......

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

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2.5k views

1 answer

js编程范式的问题。

业务中遇到资源分配，资源计算的要求；先把资源计算出来，然后才能继续分配 // tool.js export function executeResouce(arg) { return resouce } export function assign ... 代码 const resource = assign(arg); 这两种代码组织方式那种更好呢？为什么...

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

0 votes

3.1k views

1 answer

Using filebeats in Kubernetes how do I mount my own module as a configmap?

I am using this official helm chart for filebeat: https://artifacthub.io/packages/helm/elastic/filebeat I ... configmaps/filebeats-module uid: 8a6e9309-b34d-4399-8386-ad02a5f25fa3...

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

0 votes

2.9k views

1 answer

帮们看看这个页面如何提取内容？

帮忙看看这个页面，我想提取10和2这两个数字，是在下面的，但是里面是data-class，我使用beautifulsoup的要怎么选取呢？或者用其他解析器也可以，谢谢...

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

0 votes

3.5k views

1 answer

vue中token是怎么保存的？

亲们，我现在的方法是用户登录之后，将后端返回的token保存到localStorage中，每次发请求都带着这个token，如果过期了就跳转到登录页重新登录但是，同事觉得不太好，想要保存在vuex中，但是vuex中的状态一刷新就重置了呀，，， ... 赋值给vuex，这我觉的没啥区别啊，甚至有点舍近求远了有啥好的方法没 ...

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

0 votes

3.9k views

1 answer

Define leading counter for sequence in R

I am trying to create a numerical sequence in R that looks like this: ID|class|counter A| z| 1 A| z| 2 A| ... trying to count the inner class-Id combination. How does one do this?...

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

0 votes

4.3k views

1 answer

这句JS代码是什么意思？

const pluckDeep = key => obj => key.split('.').reduce((accum, key) => accum[key], obj)...

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

0 votes

4.0k views

1 answer

flutter listTile 高度是无法改变的吗？

高度，或行距，这个是无法改变的吗？在外层嵌套CONTAINER后排版不是很顺眼，试了好多方法，都无法达到满意效果。...

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

0 votes

4.2k views

1 answer

crystal reports - How can appear the dates by sequence?

I use this formulas for the report review, but the report appears without the sequence. Attached ... ToText({CUST_ORDER_LINE.PART_ID}) else {CUSTOMER_ORDER.CUSTOMER_PO_REF}...

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

0 votes

3.7k views

1 answer

Java 中的垃圾回收为什么要分代

为什么一定要分代呢，如果不分代会怎么样...

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

0 votes

3.8k views

1 answer

dataframe - using GerminR and normalizing germination data

library(rstatix) germination<-read.table(file="Germination_data_for_R.csv", header = TRUE, sep = ',') EPPO <-as.factor( ... here [1]: https://i.stack.imgur.com/8vd09.png...

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

0 votes

3.7k views

1 answer

r package - Opening .Rproj file gives wrong R version warning and wrong .libPath

So I have an R package with a .Rproj file. When I click on it, I get: Warning message: Project ... Temp/RtmpE7gqVW/renv-system-library" Neither of these paths are correct....

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

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