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python - How to add conda environment to jupyter lab

I'm using Jupyter Lab and I'm having trouble to add conda environment. The idea is to launch Jupyter Lab from ... without this "fix", I would be very grateful. Question&Answers:os...

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

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What is the advantage of using REST instead of non-REST HTTP?

Apparently, REST is just a set of conventions about how to use HTTP. I wonder which advantage these conventions provide. Does anyone know? Question&Answers:os...

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

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sql - Is there common street addresses database design for all addresses of the world?

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Question&Answers:os...

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

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Difference between VARCHAR and TEXT in MySQL

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

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android - How to show an empty view with a RecyclerView?

I am used to put an special view inside the layout file as described in the ListActivity documentation to be ... this can be done with the new RecyclerView? Question&Answers:os...

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

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python - Combining two Series into a DataFrame in pandas

I have two Series s1 and s2 with the same (non-consecutive) indices. How do I combine s1 and s2 to being two ... and keep one of the indices as a third column? Question&Answers:os...

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

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How do you remove a specific revision in the git history?

Suppose your git history looks like this: 1 2 3 4 5 1-5 are separate revisions. You need to remove 3 ... hundreds of revisions after the one to be deleted? Question&Answers:os...

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

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MySQL show status - active or total connections?

When I run show status like 'Con%' it shows the number of connections, which is 9972 and constantly ... number of connections or connections made in total? Question&Answers:os...

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

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node.js - dyld: Library not loaded: /usr/local/opt/icu4c/lib/libicui18n.62.dylib error running php after installing node with brew on Mac

I installed node using homebrew (Mojave), afterwards php stoped working and if I try to run php -v I ... uninstall both node and icu4c but the problem persists Question&Answers:os...

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

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dapper - Multi-Mapper to create object hierarchy

I've been playing around with this for a bit, because it seems like it feels a lot like the documented posts/ ... of the child to the parent. Thanks in advance Question&Answers:os...

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

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dvcs - How can I see incoming commits in git?

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

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c - How to compile a static library in Linux?

I have a question: How to compile a static library in Linux with gcc, i.e. I need to compile my source code ... with gcc, hope anyone can give me a hand. Question&Answers:os...

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

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android - Swipe to Dismiss for RecyclerView

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

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iphone - OAuth secrets in mobile apps

When using the OAuth protocol, you need a secret string obtained from the service you want to delegate to. If ... involving our own server. Am I correct? Question&Answers:os...

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

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android - Disable / Check for Mock Location (prevent gps spoofing)

Looking to find the best way to prevent / detect GPS spoofing on Android. Any suggestions on how this is ... Mock Locations are enabled? Any other suggestions? Question&Answers:os...

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

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sql - Primary key or Unique index?

At work we have a big database with unique indexes instead of primary keys and all works fine. I'm designing ... primary keys and replication on MS SQL server? Question&Answers:os...

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

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290 views

1 answer

javascript - Change text color based on brightness of the covered background area?

I am looking for a plugin or technique that changes a text's color or switches between predefined images ... something similar out there already? Examples? Question&Answers:os...

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

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262 views

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c++ - LRU cache design

Least Recently Used (LRU) Cache is to discard the least recently used items first How do you design and ... in terms of design pattern and algorithm design? Question&Answers:os...

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

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258 views

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javascript - HTML5 Canvas camera/viewport - how to actually do it?

I'm sure this was solven 1000 times before: I got a canvas in the size of 960*560 and a room in ... my description and that someone has an idea. Kind regards Question&Answers:os...

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

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328 views

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node.js - How to reuse redis connection in socket.io?

Here is my code using socket.io as WebSocket and backend with pub/sub redis. var io = io.listen(server), ... many browser tabs also treat as open 1 connection. Question&Answers:os...

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

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267 views

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sql - What's the difference between RANK() and DENSE_RANK() functions in oracle?

What's the difference between RANK() and DENSE_RANK() functions? How to find out nth salary in the following emptbl ... if I want to find out nth salary? Question&Answers:os...

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

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python - How can I tell PyCharm what type a parameter is expected to be?

When it comes to constructors, and assignments, and method calls, the PyCharm IDE is pretty good at analyzing my ... just printing all the @-lines as-is. Question&Answers:os...

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

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277 views

1 answer

objective c - RootViewController Switch Transition Animation

Is there any way to have a Transition/animation effect while replacing an existing viewcontroller as rootviewcontroller with a new one in the appDelegate? Question&Answers:os...

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

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495 views

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python - How to implement band-pass Butterworth filter with Scipy.signal.butter

UPDATE: I found a Scipy Recipe based in this question! So, for anyone interested, go straight to: ... rather straightforward bandpass filtering on EMG signals. Question&Answers:os...

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

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1.8k views

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kotlin - How to check if a "lateinit" variable has been initialized?

I wonder if there is a way to check if a lateinit variable has been initialized. For example: class Foo() { ... 't know whether myFile has been initialized } } Question&Answers:os...

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

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289 views

1 answer

ios - How to hide keyboard in swift on pressing return key?

I am using UITextfied while clicking on textfied keyboard appear but when i pressed the return key, ... method resignfirstresponder is not getting in function. Question&Answers:os...

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

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1.7k views

1 answer

elasticsearch bool query combine must with OR

I am currently trying to migrate a solr-based application to elasticsearch. I have this lucene query (( name: ... function score. My base problem still exists. Question&Answers:os...

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

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162 views

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ios - How to use UIScrollView in Storyboard

I have a scroll view with content that is 1000px tall and would like to be able to lay it out for easy design on the ... want or do I have to do it in the code? Question&Answers:os...

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

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