Recent questions in Technique[技术]

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How can I improve the performance of this R code?

I'm having trouble with the performance of this code. I have to loop through 2225 columns and calculate a betti_number. ... of each column because they're not all the same length....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why RuntimeException is not caught in catch block if there are multiple catch blocks?

I am able to catch RuntimeException or subclass of it with below code: try { //code that throws subclass of ... suitable answer. Can anyone explain why the behaviour is different?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - NullReference Exception in Blazors RenderTreeBuilder

So I'm working on a school project. I use blazor in the frontend and FluentValidation to validate forms. First, the ... commented out, already tried that. Thank you all in advance....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Handle the Sliders Control with Edit Box in MFC

I have a problem with appropriate using Slider Control and good understanding of mechanism of UpdatingData of values. This ... version of the MFC library, not for local Windows....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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openid connect - Available authorization modal on swagger-ui is not populated for OIDC security scheme

Goal: I am trying to make Open ID Connect authentication work for swagger-ui on Spring. Problem: When I click ' ... got things to work. Any help would be greatly appreciated....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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273 views

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c# - Docusign with CRM 365 Envelope Status Changes not working

We are using Demo Environment of Docusign and creating Docusign Envelope with custom c# code including Document, Recipients, Tabs ... to an instance of a String. Parameter name: s....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - AttributeError: module 'squarify' has no attribute 'plot'

A piece of code to create a treemap which worked before does not work any longer. I am using Spyder ... and reinstalling descartes. However, the initial squairy error persists....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Why Audio not works in my WebGl app when mp3 size is bigger than 3 megabyte?

I've problem/bug trying to load an audio file from an URL using UnityWebRequestMultimedia.GetAudioClip. This is my code: // ... using two call to 'www' in the same routine ?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - WPF Webbrowser invokeScript call external JS function

I have a function defined in a JS file. Test.js function fillData() { alert("fill"); } I have loaded ... to call the external JS methods using WPF WebBrowser.InvokeScript method....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jql - Epics in Jira whose Epic-Story Link is from specific project

I would like to find all epics that have "Issues in Epic" from a specific Project. Current JQL: project = FOO AND ... have other types of linked issues (eg. clones, related ..)...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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303 views

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reactjs - How can I delete previously passed object with key values pairs if I get passed a new object?

In my set state I am passing an object with key values pairs. I have three scenarios when user can pass a new ... need to delete the second one. The sequence doesn't matter....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - org.mockito.exceptions.misusing.unfinishedstubbingexception powerMockito

often when i use powerMockito i wrtie this sentences PowerMockito.doReturn(message).when(messageDAOMock.save(message)); i get ... sorry for my english, it is not my native languaje...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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355 views

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javascript - Fetch API Delete Request Data Returns - null

I'm trying to send a Delete request using Fetch. I get a response status - OK, but data is null. However the request ... always null, but I want to log the request body(myObj) })...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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329 views

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python - Clean way to combine instances from two different Classes into a new or modifed object

Given instances from two different Classes in Python, I would like to combine them to produce either a new object which has "memory" of the ... # {'1st': 10, '2dn': 15, '3rd': 25}...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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645 views

1 answer

stata - Drop a specific character from string responses

I have a string variable and some of the responses have an extra character at the beginning. The character in question is a ... 2 DG32 3 DY258 4 DD35 5 DS321 6 DD21 7 DA123...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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243 views

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c++ - Is iteration through a shared object thread safe?

I have a parallel C++ algorithm that looks somewhat like this: void recursiveFunction(int p, std::unordered_set<int ... } } Is iteration through a shared unordered_set thread safe?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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697 views

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yaml - How to link to another endpoint in Swagger

I'm writing a Swagger specification for an future public API that requires a very detailed and clean documentation. Is ... contents of the reference. Can Swagger do such a thing?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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414 views

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encryption - In PHP/ Mysql, how to access encrypted data in database after changing the salt value stored in a config file?

Currently I'm encrypting user sensitive data before storing it in the database: // salt retrieved from config file ... previous salt value? Many thanks for your support, Durian....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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678 views

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linux - Monit -failed to start (exit status 1) -- no output

I need to start pm2 apps using monit. Im not able to restart it or exec a script which sends messages to slack ... ": "$MONIT_SERVICE - $MONIT_DESCRIPTION" }" my slack webhook ```...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - Name of arguments in a function not defined

I have defined def TrackXY_by_QI(im, QI, sho, xm, ym): Then some code follows. I return return xnw,ynw. I want to now ... ) NameError: name 'QI' is not defined How can I fix this?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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287 views

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Solving optimization problem with CVXR in R, using several constraints

I am trying to solve an mixed integer problem with CVXR in R. Following code is used to solve it: n <- 6 beta ... the constraints that I want. Does anyone know how to solve this?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.5k views

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gitlab - SSH bash session and environments variables scope

I have a Gitlab pipeline to get into a server via ssh, load correct node version with nvm, and install node packages ... the server session. Does anyone know how to achieve that?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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252 views

1 answer

c++ - invoke PreTranslateMessage explixitly in mfc

How to invoke PreTranslateMessage explicitly in mfc using send message. the PreTranslateMessage message call is blocked ....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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231 views

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ios - UITextview is blurred when draw image

When I draw a new image, uitextview is blurred. First text which is after draw new image. it looks like ... ()! UIGraphicsEndImageContext() self.init(cgImage: image.cgImage!) }...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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windows - Error in ipython console "Exception [WinError 995] The I/O operation has been aborted"

I have installed python 3.8.5 and in ipython 7.19.0 via Anaconda installer on Windows 10 machine and I get the ... thread exit or an application request Press ENTER to continue......

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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345 views

1 answer

apache spark - why doesn't lit() function work in selectExpr()?

df.selectExpr(func.lit(20)).show() df.selectExpr("func.lit(20)").show() Throwing Error : raise TypeError("Column is not iterable") TypeError: Column is not iterable...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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159 views

1 answer

javascript - URL() constructor add %20 in host for chrome but its not valid in firefox

I am using URL() constructor to check if URL is a valid one. https://developer.mozilla.org/en-US/docs/Web/API/URL/URL If i ... let url = new URL('https:// s'); console.log(url);...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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170 views

1 answer

python - How can I filter a list into three sublists?

I have a list called transactions_clean, cleaned up from whitespace etc., look like this: ['Edith Mcbride', '$1.21', 'white', ... work out. Also I don't know how to skip the dates....

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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