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c# - Why is TypedReference behind the scenes? It's so fast and safe... almost magical!

Warning: This question is a bit heretical... religious programmers always abiding by good practices, please don ... TypedReference on average.) See Question&Answers more detail:os...

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

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Spring Boot: How can I set the logging level with application.properties?

This is very simple question, but I cannot find information. (Maybe my knowledge about Java frameworks is ... logging file location, etc? 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 - How can I create a copy of an Oracle table without copying the data?

I know the statement: create table xyz_new as select * from xyz; Which copies the structure and the data, but what if I just want the structure? 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 - Pythonic way to combine FOR loop and IF statement

I know how to use both for loops and if statements on separate lines, such as: >>> a = [2,3,4,5,6,7 ... not the way python is supposed to work? 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 - Asyncio.gather vs asyncio.wait

asyncio.gather and asyncio.wait seem to have similar uses: I have a bunch of async things that I want to ... functionality. What am I missing? 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 - Getting the value of the input field using jquery

I have a table with edit button, every table contains an edit button with the different input field value, I need to ... ).val(); alert (bla); 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 - Version vs build in Xcode

I have an app that I developed with Xcode 3 and recently started editing with Xcode 4. In the target summary I ... after I upgraded to Xcode 4? See Question&Answers more detail:os...

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

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scripting - Stopping scripters from slamming your website

I've accepted an answer, but sadly, I believe we're stuck with our original worst case scenario: CAPTCHA everyone ... to prove they're human. See Question&Answers more detail:os...

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

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math - What is "entropy and information gain"?

I am reading this book (NLTK) and it is confusing. Entropy is defined as: Entropy is the sum of the ... easy, simple example (visual)? See Question&Answers more detail:os...

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

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mysql - How to truncate a foreign key constrained table?

Why doesn't a TRUNCATE on mygroup work? Even though I have ON DELETE CASCADE SET I get: ERROR 1701 (42000) ... UNIQUE(GroupID) ) ENGINE=InnoDB; See Question&Answers more detail:os...

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

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svn - How do you organize your version control repository?

First, I know about this: How would you organize a Subversion repository for in house software projects? Next, the ... How would YOU do it? See Question&Answers more detail:os...

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

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debugging - Starting python debugger automatically on error

This is a question I have wondered about for quite some time, yet I have never found a suitable solution. If I ... a few extra lines of 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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c# - When should I use GC.SuppressFinalize()?

In .NET, under which circumstances should I use GC.SuppressFinalize()? What advantage(s) does using this method give me? See Question&Answers more detail:os...

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

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sqlite - How to get a list of column names on Sqlite3 database?

I want to migrate my iPhone app to a new database version. Since I don't have some version saved, I need ... that the common way? Alternatives? 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 Java 8 Stream.collect equivalents are available in the standard Kotlin library?

In Java 8, there is Stream.collect which allows aggregations on collections. In Kotlin, this does not exist ... for current-day Kotlin. 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 - Role/Purpose of ContextLoaderListener in Spring?

I am learning Spring Framework which is being used in my project. I found the ContextLoaderListener entry in ... Is this understanding correct? 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 stop an unstoppable zombie job on Jenkins without restarting the server?

Our Jenkins server has a job that has been running for three days, but is not doing anything. Clicking the ... want to restart the server. See Question&Answers more detail:os...

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

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427 views

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ios - UITableView load more when scrolling to bottom like Facebook application

I am developing an application that uses SQLite. I want to show a list of users (UITableView) using a ... home page on Facebook application)? See Question&Answers more detail:os...

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

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rest - Which HTTP methods match up to which CRUD methods?

In RESTful style programming, we should use HTTP methods as our building blocks. I'm a little confused though ... one with Create and Update? 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 set up DAGGER dependency injection from scratch in Android project?

How to use Dagger? How to configure Dagger to work in my Android project? I'd like to use Dagger in my ... guide rather than a "question".] See Question&Answers more detail:os...

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

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327 views

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.net assembly - Practical uses for the "internal" keyword in C#

Could you please explain what the practical usage is for the internal keyword in C#? I know that the internal ... circumstance should I use it? See Question&Answers more detail:os...

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

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824 views

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python - How to initialize weights in PyTorch?

How to initialize the weights and biases (for example, with He or Xavier initialization) in a network in PyTorch? See Question&Answers more detail:os...

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

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185 views

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ios - Custom installed font not displayed correctly in UILabel

I'm trying to use a Helvetica Neue Condensed font which I got from the Adobe Font Collection Pro Package. ... it to draw this way? See Question&Answers more detail:os...

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

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199 views

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Python to print out status bar and percentage

To implement a status bar like below: [========== ] 45% [================ ] 60% [=========== ... it, not print to another line. How to do 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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ios - Changing navigation bar color in Swift

I am using a Picker View to allow the user to choose the colour theme for the entire app. I am planning on ... code to change the UI colours. See Question&Answers more detail:os...

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

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263 views

1 answer

php - Get the Query Executed in Laravel 3/4

How can I retrieve the raw executed SQL query in Laravel 3/4 using Laravel Query Builder or Eloquent ORM? ... queries executed to laravel.log? See Question&Answers more detail:os...

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

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218 views

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bash - Using the RUN instruction in a Dockerfile with 'source' does not work

I have a Dockerfile that I am putting together to install a vanilla python environment (into which I will be ... for Ubuntu 12.04 LTS). See Question&Answers more detail:os...

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

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238 views

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Returning value from called function in a shell script

I want to return the value from a function called in a shell script. Perhaps I am missing the syntax. I ... echo "directory already created" fi See Question&Answers more detail:os...

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

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