OStack Q&A-Knowledge Sharing Community

0 votes

384 views

1 answer

contextmenu - How add context menu item to Windows Explorer for folders

Closed. This question needs to be more focused. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

219 views

1 answer

language agnostic - What algorithm gives suggestions in a spell checker?

What algorithm is typically used when implementing a spell checker that is accompanied with word suggestions? At ... repeatedly. How is this typically done? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

125 views

1 answer

sql - Are soft deletes a good idea?

This question already has answers here: Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

618 views

1 answer

collections - Easiest way to convert a List to a Set in Java

What is the easiest way to convert a List to a Set in Java? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

559 views

1 answer

macos - dyld: Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib

I installed vapor via homebrew and then immediately wanted to jump into a project by executing vapor new Hello but ... I'm on MacOS Catalina if that matters. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

93 views

1 answer

c# - How do I run a simple bit of code in a new thread?

I have a bit of code that I need to run in a different thread than the GUI as it currently causes the form to ... in C# and using .NET Framework 2.0 or later? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

274 views

1 answer

git rm - How to revert a "git rm -r ."?

I accidentely said git rm -r .. How do I recover from this? I did not commit. I think all files were marked for ... the last commit and before the git rm -r .. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

496 views

1 answer

algorithm - How to find the kth smallest element in the union of two sorted arrays?

This is a homework question, binary search has already been introduced: Given two arrays, respectively N and M elements ... the answer. What is the next step? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

196 views

1 answer

javascript - How to improve performance of ngRepeat over a huge dataset (angular.js)?

I have a huge dataset of several thousand rows with around 10 fields each, about 2MBs of data. I need to ... completely. What are the best practices at this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

228 views

1 answer

python - Convert a list of characters into a string

If I have a list of chars: a = ['a','b','c','d'] How do I convert it into a single string? a = 'abcd' Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

483 views

1 answer

node.js - Socket.IO - how do I get a list of connected sockets/clients?

I'm trying to get a list of all the sockets/clients that are currently connected. io.sockets does not return an ... if I were to maintain my own list. Help? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

382 views

1 answer

java - JsonMappingException: No suitable constructor found for type [simple type, class ]: can not instantiate from JSON object

I am getting the following error when trying to get a JSON request and process it: org.codehaus.jackson. ... class - Please look accepted answer for solution. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

91 views

1 answer

php - When to use static vs instantiated classes

PHP is my first programming language. I can't quite wrap my head around when to use static classes vs instantiated ... Is there a proper way to do this stuff? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

160 views

1 answer

javascript - Chrome Extension - Get DOM content

I'm trying to access the activeTab DOM content from my popup. Here is my manifest: { "manifest_version" ... Receiving end does not exist. lastError:30 undefined Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

117 views

1 answer

android - Differences between ConstraintLayout and RelativeLayout

I am confused about the difference between ConstraintLayout and RelativeLayout. Could someone please tell me the exact differences between them? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

304 views

1 answer

Disable developer mode extensions pop up in Chrome

Since the latest release of chrome (34.0.1847.116) last week, I have been receiving the Disable developer mode ... to and this is playing havoc with my tests. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

291 views

1 answer

version control - What's the best visual merge tool for Git?

Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

627 views

1 answer

macos - psql: FATAL: role "postgres" does not exist

I'm a postgres novice. I installed the postgres.app for mac. I was playing around with the psql commands ... and reinstall everything? Thanks for the help guys! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

171 views

1 answer

ios - Always pass weak reference of self into block in ARC?

I am a little confused about block usage in Objective-C. I currently use ARC and I have quite a lot of ... @autoreleasepool { ... callback(rowHeightsArr); } } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

994 views

1 answer

functional programming - What is the difference between Scala's case class and class?

I searched in Google to find the differences between a case class and a class. Everyone mentions that when you ... learn more about the Scala case classes from? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

695 views

1 answer

terminology - What is the difference between memoization and dynamic programming?

What is the difference between memoization and dynamic programming? I think dynamic programming is a subset of memoization. Is it right? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

97 views

1 answer

c# - Using IQueryable with Linq

What is the use of IQueryable in the context of LINQ? Is it used for developing extension methods or any other purpose? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

180 views

1 answer

windows - How to get list of arguments?

I'd like to find a Windows batch counterpart to Bash's $@ that holds a list of all arguments passed into a script. Or I have to bother with shift? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

437 views

1 answer

rake - A cron job for rails: best practices?

What's the best way to run scheduled tasks in a Rails environment? Script/runner? Rake? I would like to run the task every few minutes. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

155 views

1 answer

ruby - Rails params explained?

Could anyone explain params in Rails controller: where they come from, and what they are referencing? def create ... by-line and understand what's going on. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

234 views

1 answer

Using git to get just the latest revision

I want to track a project that uses git. I don't want to clone the full repository and the full history, ... like in subversion. Is this possible in git? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

119 views

1 answer

c# - Single controller with multiple GET methods in ASP.NET Web API

In Web API I had a class of similar structure: public class SomeController : ApiController { [WebGet(UriTemplate = "{ ... the code work on ASP.NET Web API? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

208 views

1 answer

python - When I catch an exception, how do I get the type, file, and line number?

Catching an exception that would print like this: Traceback (most recent call last): File "c:/tmp.py", line 1 ... to format it into: ZeroDivisonError, tmp.py, 1 Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Recent questions

Just Browsing Browsing

Most popular tags