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Why is my Git Submodule HEAD detached from master?

I am using Git submodules. After pulling changes from server, many times my submodule head gets detached from ... submodule is always pointing to master branch? Question&Answers:os...

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

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538 views

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javascript - A component is changing an uncontrolled input of type text to be controlled error in ReactJS

Warning: A component is changing an uncontrolled input of type text to be controlled. Input elements should not switch from ... name"]}</span> </div> ) } Question&Answers:os...

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

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139 views

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A riddle (in C)

A friend gave me a riddle: #include<stdio.h> #define TOTAL_ELEMENTS ((sizeof(array) / sizeof(array[0]))) int array[ ... I can't put my finger on the problem. Question&Answers:os...

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

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543 views

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php - Warning: mysqli_select_db() expects exactly 2 parameters, 1 given

I'm doing a tutorial in which the author has not updated his content to reflect changes in the PHP documentation. ... exactly 2 parameters, 1 given in C:... Question&Answers:os...

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

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190 views

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postgresql - What to do with null values when modeling and normalizing?

I'm new in SQL(still learning) and I have to create a database for a venue. A client book for a ... to normalize my table after that. Any suggestions please. Question&Answers:os...

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

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382 views

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string - How to escape JavaScript in JSP?

I'm totally stuck on this, I'm trying to escape a single quote in a JSP. I have some data that I'm ... Or I actually need to escape quotes with backward slash? Question&Answers:os...

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

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powershell - redirecting test-path output to text file

The txt file is just a bunch of UNC paths, i am trying to get a list of UNC paths from this text file put into ... | Out-File -FilePath c:emp1.txt -Append } } Question&Answers:os...

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

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python - pygame.event.get() not returning any events when inside a thread

So I have this code that looks after the user inputs for a pac-man style game. def receiving_inputs(self): ... things in the mainloop). Thanks in advance. Question&Answers:os...

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

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Pygame already installed; however, python terminal says "No module named 'pygame' " (Ubuntu 20.04.1)

I'm using Ubuntu 20.04.1 LTS. I have installed pygame with sudo apt-get install python-pygame. However, when I ... Python version is 3.8.2. Thanks in advance! Question&Answers:os...

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

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786 views

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code formatting - Tool to Unminify / Decompress JavaScript

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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93 views

1 answer

c - Creating a daemon in Linux

In Linux I want to add a daemon that cannot be stopped and which monitors filesystem changes. If any changes are detected ... = "Parent Process:"; } return 0; } Question&Answers:os...

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

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objective c - How to scale a UIImageView proportionally?

I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width ... imageView and how do I correct the position? Question&Answers:os...

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

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202 views

1 answer

database - What's the difference between TRUNCATE and DELETE in SQL

What's the difference between TRUNCATE and DELETE in SQL? If your answer is platform specific, please indicate that. Question&Answers:os...

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

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463 views

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mysql - Column count doesn't match value count at row 1

So I read the other posts but this question is unique. So this SQL dump file has this as the last entry. INSERT INTO ` ... doesn't 5,5 mean row 5 and column 5? Question&Answers:os...

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

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186 views

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python - How to remove nan value while combining two column in Panda Data frame?

I am trying but not able to remove nan while combining two columns of a DataFrame. Data is like: feedback_id _id ... (), a.any() or a.all(). Question&Answers:os...

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

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266 views

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python - How to avoid floating point errors?

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

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

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764 views

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types - long/bigint/decimal equivalent datatype in R

What datatype choices do we have to handle large numbers in R? By default, the size of an integer seems to be 32bit ... to say on this as well as in general. Question&Answers:os...

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

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1.1k views

1 answer

matlab - Variable appears to change size on every loop iteration - what?

When writing the following Matlab code: for ii=1:n x(ii) = foo( ii ); % foo is some function of ... aspects of preallocation, rather a specific instance of it. Question&Answers:os...

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

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390 views

1 answer

html - Make a grid item span to the last row / column in implicit grid

Is it possible to make a grid item span from the first to the last row when I don't know the number of rows? Lets say ... </div> <div class="box"></div> </div> Question&Answers:os...

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

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414 views

1 answer

c# - UnauthorizedAccessException cannot resolve Directory.GetFiles failure

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

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151 views

1 answer

php multi-dimensional array remove duplicate

Not sure if this question is a duplicate in need of removal, but I couldn't find the answer elsewhere so I'll ... but it just ain't right. Any help appreciated. Question&Answers:os...

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

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164 views

1 answer

performance - Why does breaking the "output dependency" of LZCNT matter?

While benchmarking something I measured a much lower throughput than I had calculated, which I narrowed down to the LZCNT ... as BSR/BSF. What's going on here? Question&Answers:os...

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

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237 views

1 answer

node.js - React-router with BrowserRouter / browserHistory doesn't work on refresh

I have the following webpack config file: var webpack = require('webpack'); var path = require('path'); var BUILD_DIR ... ; I get "Cannot GET /src/client/home". Question&Answers:os...

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

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169 views

1 answer

"this" keyword in event methods when using JavaScript prototype object

I'm trying to access the member variables of a prototype class in JavaScript in an event handler -- something ... Is there another way to achieve this? Thanks. Question&Answers:os...

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

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269 views

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linux - How to invoke a system call via syscall or sysenter in inline assembly?

How can we implement the system call using sysenter/syscall directly in x86 Linux? Can anybody provide help? It ... But still find it difficult to figure out. Question&Answers:os...

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

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299 views

1 answer

java - Border with rounded corners & transparency

The following screenshot shows a test of TextBubbleBorder1. I would like to make the corners of the component that ... up with a 'rounded rectangle' instead. Question&Answers:os...

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

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134 views

1 answer

How do I resolve "ambiguous use of" compile error with Swift #selector syntax?

[NOTE This question was originally formulated under Swift 2.2. It has been revised for Swift 4, involving two ... the problem can easily arise in real life.] Question&Answers:os...

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

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271 views

1 answer

initial value of int array in C

When declaring an array in C like this: int array[10]; What is the initial value of the integers?? I'm ... something to do with the compiler, or the OS. Question&Answers:os...

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

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