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Recent questions
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ngxs - NullInjectorError: No provider for InjectionToken Window
I have been trying to debug this issue but I have had no success. I believe it's a lack of ... /_karma_webpack_/node_modules/@angular/core/__ivy_ngcc__/fesm2015/core.js:7825:1)...
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请教一道 Python 题目,感觉有点类似背包问题,我现在的代码太慢,请问有什么提速思路?
有给定的底面积 = 1,高度为 blocks 不等的积木;现在有一个底面积为 tong_size 的桶,想把积木全部放进去,求最低的堆积方案 或者就是把一个数组分组,求分成n组之后,每一组的和的最大值为最小 现在的代码方案是: def mdp ... 可以快速计算出桶的最低高度,这样第一列一定要达到最低高度才需要进入下一列,但是也没有太好的实现思路 ...
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antv/g6 tooltip如何延迟显示
需求是这样的,tooltip展示需要获取后端数据,但是需要等请求回来数据之后再展示 那请问如何才能控制tooltip延迟显示?...
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r - ifelse merge and merge without duplicate columns
I have the following data frames #Data to be matched Data <- data.frame( Register = c(141 ,565, 1411, 141, 230, ... to work with. edit: Added the "Gender" column in the dataframe...
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Finding in-between 2 consecutive numbers (regEx)
I have bee trying to create a exam paper parser. I am struggling to make a regular expression for capturing the question ... everything in-between the 21 and 29 (instead of 22)...
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c/c++ 三目运算符的一个疑问
刚刷leetcode 104,遇到一个奇怪的问题,总结起来就是如下代码: #include <stdio.h> int main() { int m = 2; int n = 10; int x = 1 + (m > n) ? m :n; printf("%d ... m :n); 这个写法和上面写法得到的结果不同,+运算符优先级高于 ?,这种现象怎么解释?...
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项目中的git文件老是自动被修改,请问是怎么回事?
这里我没有改动,也没有拉取代码,它自己就会不定时的新增修改的文件...
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easyswoole 用文档上的方法启动提示说命令不存在
按照文档上的使用php easyswoole start启动提示说没有这个命令,是安装过程中有哪里漏了还是说启动方法更换了...
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How to validate data entered in the sign up form created in Django?
I have created a registration form using the class models.User (refer) in Django as follows: from Django.shortcuts ... any) all while using the inbuilt model class models.User?...
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ios - Alamofire use configurable Caching
I'm using Alamofire 5 and have the requirement that some GET-requests should be cached. If ... : ServerTrustManager(evaluators: evaluators), cachedResponseHandler: responseCacher )...
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r - Using a "not" operator before an ellipsis
I am trying to make a function using a ! logical operator before an ellipsis .... Below is a simple example: ... for my purpose, I have to negate the condition inside myfun....
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element有关问题
install这段啥意思...
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c# - Respawn AI after destroy
I'm new, and I've got hard time to respawn my AI (right now he just a cube that follow my player) after he ... .Translate(toTarget * speed * Time.deltaTime); } } Thanks very much!...
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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...
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node.js - AppleScript - creating a multi conditional loop
I'm using AppleScript the first time, and what I want to do to control Tunnelblick with it. Try to connect to a ... I doing wrong? Or, how can it be done more efficiently?...
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mysql怎么查询5分钟粒度的时间轴数据?
现在设备每1分钟会上送一次采集数据存到数据库,现在想按5分钟的粒度(比如4:00 4:05 4:10)为时间轴,查询每个时间节点附近的数据库内的数据作为该时间节点的数据,怎么用一条sql实现? 示例 数据库数据: 4: ... :42 j 4:10:50 k 4:11:55 l sql查出的数据: 4:00:00 a 4:05:00 f 4:10:00 j...
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Jan 25, 2021
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苹果手机设置代理关闭之后再打开代理原来的设置不见了
苹果手机设置代理关闭之后再打开代理原来的设置不见了,这个有办法解决了,再次进入,还能记住之前设置的代理地址。...
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Jan 25, 2021
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javascript - unable to communicate between two applications loaded using iframes
I have one old angular js application. Currently I am developing each screen of this application in Angular 10 and ... anyone please suggest in what way we can achieve this....
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Jan 24, 2021
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js中怎么把像"10月2日 23:23:34开售"之类的字符串直接转成时间戳的函数?
如题js中有把像 "10月2日 12:12:12开售" 或 "2020年12月5日 12:12:23结束" 转成时间戳的函数, 其中年可能带可能不带,时间后面有汉字,而且汉字字数不确定。...
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js中怎么把像"10月2日
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c++ - X DevAPI mysqlx::Session() over linux socket fails with “CDK Error: unexpected message”
I've (3) freshly installed mysql, (4) freshly installed Connector/C++ 8.0 X DevAPI, (5) did minimal ... $ systemctl start mysql $ systemctl status mysql <active (running)>...
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reactjs - the object ' const value = {}' in AuthContext.js perfectly renders its elements in Login and Signup components but shows undefined in Header.js
The elements of const value ={} object renders all their elements and their values in Login.js and Signup.js but in ... add Header in AuthContext.Provider too but it doesn't work....
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springcloud 开启https
求大佬们讲解一下微服务下开启https的思路,假设我有四个服务,注册中心,gateway网关,oauth认证服务,和业务代码的服务,那么我开启https是所有模块都要开启,还是只需要把网关开启https,然后转发成http?...
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python 3.x - What is the difference between dest_np=copy.deepcopy(src_np) and dest_np[:]=src_np for copying numpy arrays in python3? Which is better?
I am trying to efficiently deep copy a numpy array into another. Some background, I started with copying from a byte ... originally (using a for loop to copy individual values)?...
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ehcarts-for-react报错问题
版本 报错 代码...
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Jan 24, 2021
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设置loader的预处理additionalData之后怎样在js访问css变量?
vue.config.js 不设置additionalData之前可以分别在css和js分别引入variables.scss来用,设置后在js里就不知道怎样引用变量了...
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reporting services - Pass a hardcoded value in an open url action expression - SSRS
I have a dashboard where I link KPIs to other reports that are just listings with more information. I need to link a ... "&(Fields!ForestryUnit.Value,"6")&"&rs:Command=Render'))"...
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ASP.Net Web Application using .Net Framework v5.0: IFormFile always null when passing from view to controller
I am trying to allow the user to upload a pdf file. I am not getting any errors, but the IFormFile ... /www.aspsnippets.com/Articles/ASPNet-Core-IFormFile-always-returns-NULL.aspx...
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webgl,使用canvas作为纹理渲染。
请问如何将canvas作为纹理渲染到webgl画布中?目前搜到的都是基于threejs来实现的...
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Jan 24, 2021
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