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I'm trying to create a button which has some text beneath the icon (sorta like the app buttons) however it ... below the image with a UIButton? See Question&Answers more detail:os...

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

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c++ - Why can I access private variables in the copy constructor?

I have learned that I can never access a private variable, only with a get-function in the class. But then why can ... : T *pFirst,*pLast,*pEnd; See Question&Answers more detail:os...

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

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sql - Fastest check if row exists in PostgreSQL

I have a bunch of rows that I need to insert into table, but these inserts are always done in batches. So ... means they all are present there. See Question&Answers more detail:os...

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

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how to install gcc on windows 7 machine?

I have MinGW on my windows 7 machine. I wish to install and use complete gcc for C compiler. I found ... by step guidance along with links? See Question&Answers more detail:os...

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

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ios - How can I get a view's current width and height when using autolayout constraints?

I'm not talking about the frame property, because from that you can only get the view's size in the xib. I'm ... this so difficult for me. ARG! See Question&Answers more detail:os...

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

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java - Single DAO & generic CRUD methods (JPA/Hibernate + Spring)

Following my previous question, DAO and Service layers (JPA/Hibernate + Spring), I decided to use just a single ... share a link regarding this? See Question&Answers more detail:os...

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

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java - Websocket Authentication and Authorization in Spring

I've been struggling a lot to properly implement Stomp (websocket) Authentication and Authorization with Spring- ... HTTP negotiation call). See Question&Answers more detail:os...

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

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iphone - Customize the MKAnnotationView callout

I want to create a custom MKAnnotationView callout as shown in this image. I have tested several solutions but ... am clueless. Please help. See Question&Answers more detail:os...

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

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java - How do I use the new computeIfAbsent function?

I very much want to use Map.computeIfAbsent but it has been too long since lambdas in undergrad. Almost ... lambda way of expressing this? See Question&Answers more detail:os...

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

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rubygems - You don't have write permissions for the /var/lib/gems/2.3.0 directory

I have ruby installed on my ubuntu 16.04. $which ruby /usr/bin/ruby $ruby -v ruby 2.3.0p0 (2015-12- ... . Any help will be greatly appreciated! See Question&Answers more detail:os...

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

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css - Using Font Awesome icon for bullet points, with a single list item element

We'd like to be able to use a Font Awesome ( http://fortawesome.github.com/Font-Awesome/ ) icon as a ... great to use Font Awesome if possible. See Question&Answers more detail:os...

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

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terminology - Stateless vs Stateful

I'm interested in articles which have some concrete information about stateless and stateful design in programming. I ... bits of information :) See Question&Answers more detail:os...

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

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python - How to show all columns' names on a large pandas dataframe?

I have a dataframe that consist of hundreds of columns, and I need to see all column names. What I did: ... , instead of a truncated list? See Question&Answers more detail:os...

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

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How to use conditional statement within child attribute of a Flutter Widget (Center Widget)

So far whenever I needed to use a conditional statement within a Widget I have done the following (Using Center ... thinking there is dead code? See Question&Answers more detail:os...

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

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How to generate an openSSL key using a passphrase from the command line?

First - what happens if I don't give a passphrase? Is some sort of pseudo random phrase used? I'm just looking ... way to generate a key pair) See Question&Answers more detail:os...

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

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javascript - Nested JSON objects - do I have to use arrays for everything?

Is there any way to have nested objects in JSON so I don't have to make arrays out of everything? For ... me it would be gratefully appreciated! See Question&Answers more detail:os...

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

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javascript - Angular ui router unit testing (states to urls)

I'm having some trouble unit testing the router in my application, which is built on the Angular ui ... $state.current.name remains empty. See Question&Answers more detail:os...

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

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iphone - What are some methods to debug Javascript inside of a UIWebView?

I'm trying to figure out why something with Javascript isn't working inside of a UIWebView. To my knowledge, ... the old-school alert method? See Question&Answers more detail:os...

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

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c++ - Benefits of header-only libraries

What are the benefits of a header only library and why would you write it that way oppose to putting the implementation into separate file? See Question&Answers more detail:os...

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

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python - Is there a way to guarantee hierarchical output from NetworkX?

I'm trying to produce a flow diagram of a tree structure. I've been able to create representative graphs with ... .draw_networkx(G) plt.show() See Question&Answers more detail:os...

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

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node.js - Difference between app.all('*') and app.use('/')

Is there a useful difference between app.all('*', ... ) and app.use('/', ...) in Node.JS Express? See Question&Answers more detail:os...

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

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java - Correct way of throwing exceptions with Reactor

I'm new to project Reactor and reactive programming in general. I'm currently working on a piece of code similar ... these two ways of doing? See Question&Answers more detail:os...

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

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What is the difference between spark checkpoint and persist to a disk

What is the difference between spark checkpoint and persist to a disk. Are both these store in the local disk? See Question&Answers more detail:os...

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

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amazon s3 - Is there an S3 policy for limiting access to only see/access one bucket?

I have a simple bucket that looks like images.mysite.com on my S3 and other buckets containing backups, etc. I ... the listing of any buckets. See Question&Answers more detail:os...

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

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Send Outlook Email Via Python?

I am using Outlook 2003. What is the best way to send email (through Outlook 2003) using Python? See Question&Answers more detail:os...

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

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paradigms - Functional programming and non-functional programming

In my second year of University we were "taught" Haskell, I know almost nothing about it and even ... a non-functional programming language? See Question&Answers more detail:os...

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

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552 views

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document - Simple implementation of N-Gram, tf-idf and Cosine similarity in Python

I need to compare documents stored in a DB and come up with a similarity score between 0 and 1. The ... I start writing this from scratch? See Question&Answers more detail:os...

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

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c++11 - Refactoring with C++ 11

Given the new toolset provided by c++ lots of programmers, aiming at code simplification, expressiveness, ... and simpler and elegant. See Question&Answers more detail:os...

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

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