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Why can reflection access protected/private member of class in C#?

Why can reflection access protected/private member of class in C#? Is this not safe for the class, why is ... Is this an anti-pattern? 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 flatten all items from a nested Java Collection into a single List?

Given a complex nested collection of objects such as: Set<List<Map<String, List<Object>>>> complexNestedCollection; ... about the general case. See Question&Answers more detail:os...

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

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polymorphism - Haskell: How to create most generic function possible that applies a function to tuple items

This is a personal exercise to understand the limits of Haskell's type system a little better. I want to ... a more specific type signature. See Question&Answers more detail:os...

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

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Why is it recommended against using a dynamic start_date in Airflow?

I've read Airflow's FAQ about "What's the deal with start_date?", but it still isn't clear to me why it ... there some concept that I'm 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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rust - Simultaneous mutable access to arbitrary indices of a large vector that are guaranteed to be disjoint

Context I have a case where multiple threads must update objects stored in a shared vector. However, the ... the size of indices_to_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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php - PDO returning incorrect, but duplicate, data. Key's not in database.

I'm new to using $pdo statements so might be something simple I haven't yet read on php.net. I'm ... prevent them from even being returned? 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 - Emailing to multiple recipients with html Mailto: not working

we have 400 to 500 hundred emails, when we concatenate them and put them in mailto: it does not work, browser ... i can open multiple emails ? 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# - Find WPF control by Name

I'm after some help finding the best way to refer to controls that have been programmtically built in C# If I pre ... ).Tag = timeNow; Thank you 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# lambda, local variable value not taken when you think?

Suppose we have the following code: void AFunction() { foreach(AClass i in AClassCollection) { listOfLambdaFunctions ... around this problem? See Question&Answers more detail:os...

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

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firebase - Delete index at array in Firestore

I got this data in my document: I want to delete index 0. How do I do this? This should do the trick ... at an index in Firestore? Thanks. 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# - Is it possible to force an auto-property to use a readonly backing field?

My project contains a large number of classes with properties whose backing field is marked readonly as they ... readonly string LastName; 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 - _tkinter.TclError: image "..." doesn't exist

I know that this question has already been asked several times, but I still couldn't figure out the answer ... Any help would be 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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Checking for underflow/overflow in C++?

Is there a general way to check for an overflow or an underflow of a given data type (uint32, int etc.) ... a large number like: 4294963846. See Question&Answers more detail:os...

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

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Which Perl module would you recommend for JSON manipulation?

As usual, I'm happy to deal with CPAN because it got all we need. As usual, I'm lost because there is ... modules that you like for this task? 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 - Lodash remove items recursively

Given this JSON object, how does lodash remove the reach value from the objects? { total: 350, SN1: { ... actual problem. Can anyone 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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python - Scikit Learn OneHotEncoder fit and transform Error: ValueError: X has different shape than during fitting

Below is my code. I know why the error is occurring during transform. It is because of the feature list mismatch ... . Expected 10, got 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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Please suggest for XSLT code for Table rowspan and colspan issues

<article> <table id="tbl1"> <caption><p>Table 1. Sample Table</p></caption> <thead> <tr> <td colspan=" ... if> </xsl:template> </xsl:stylesheet> See Question&Answers more detail:os...

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

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perl - How to pass a variable from a child process (fork by Parallel::ForkManager)?

My query: In the following code i had tried to bring the print $commandoutput[0] to be shifted or passed into ... $lines=shift; print $lines; } See Question&Answers more detail:os...

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

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android - how to zoom + crop a image and display the croped image on imageview

I am making android app in which I have a scenario that I pick an image from gallery, crop it and show it on ... out.println("alert"); } } } 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 - Pacman open/close mouth animation

I want to make the pacman open/close mouth animation using the easiest method. Here is my recent code: The problem ... be the reason for that? See Question&Answers more detail:os...

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

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392 views

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c++ - What happens when you call data() on a std::vector<bool>?

C++11 has implemented data() member function on std::vector, which gives you a pointer to the memory array. ... expect from calling data() ? See Question&Answers more detail:os...

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

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368 views

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c# - DllNotFoundException, but DLL is there

So I'm using an SDK for a hardware random number generator which provides a dll called PsyREG.dll for interacting with ... .dll")]. Any ideas? See Question&Answers more detail:os...

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

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319 views

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How to update Google Play Services for Android Studio 2.2 emulators?

There are a number of variations of this question, however most are very old, and don't really answer the question ... thing am I missing? TIA See Question&Answers more detail:os...

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

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php - How to convert a 13 digit Unix Timestamp to Date and time?

I have this 13 digit timestamp 1443852054000 that i want to convert to date and time but dont succeed. I have tried ... ; ?> what should i use? See Question&Answers more detail:os...

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

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3.7k views

2 answers

css transitions - Backface-Visibility Not Working Properly in Firefox (Works in Safari)

I'm having a problem with the back face-visibilty property. It works how I want it to in Safari/Chrome, but ... mirror image of the front face. See Question&Answers more detail:os...

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

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371 views

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javascript - How to bind <script> element's src attribute in AngularJS

I am trying to bind the src attribute of an HTML <script> element to a variable in my angular controller, ... <script> is somehow different. See Question&Answers more detail:os...

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

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559 views

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c++ - Why is this constexpr static member function not seen as constexpr when called?

Why is this constexpr static member function, identified by the //! Nah comment, not seen as constexpr when called? ... 't make sense to 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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405 views

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c++ - Exception Error c0000005 in VC++

Am working on VC++ Console Application. This application sends a file from AppdataRoaming folder for a period of ... me to resolve this issue See Question&Answers more detail:os...

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

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