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How to position one element relative to another with jQuery?

I have a hidden DIV which contains a toolbar-like menu. I have a number of DIVs which are enabled to show ... like $(menu).position("topright", targetEl); Question&Answers:os...

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

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How to add a new audio (not mixing) into a video using ffmpeg?

I used a command like: ffmpeg -i video.avi -i audio.mp3 -vcodec codec -acodec codec output_video.avi -newaudio in ... audio to my video (not mix) using ffmpeg. Question&Answers:os...

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

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210 views

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r - Using data.table package inside my own package

I am trying to use the data.table package inside my own package. MWE is as follows: I create a function, test. ... to fix it. Any help is very much appreciated. Question&Answers:os...

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

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java - What is the solution for the N+1 issue in JPA and Hibernate?

I understand that the N+1 problem is where one query is executed to fetch N records and N queries to fetch some ... . But how can it be avoided in Hibernate? Question&Answers:os...

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

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image - WPF Error: Cannot find governing FrameworkElement for target element

I've got a DataGrid with a row that has an image. This image is bound with a trigger to a certain state. When ... ' (type 'Object') Why is this error showing? Question&Answers:os...

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

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Angular 2 http.post() is not sending the request

When I make a post request the angular 2 http is not sending this request this.http.post(this.adminUsersControllerRoute, JSON. ... me why ? Or it is a bug ? Question&Answers:os...

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

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java - SimpleDateFormat and locale based format string

I'm trying to format a date in Java in different ways based on the given locale. For instance I want ... the locale and add the corresponding format string? Question&Answers:os...

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

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console - Polling the keyboard (detect a keypress) in python

How can I poll the keyboard from a console python app? Specifically, I would like to do something akin to this in ... wouldn't be bad, though it's not required. Question&Answers:os...

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

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String concatenation in Java - when to use +, StringBuilder and concat

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

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c# - How do I use Moq to mock an extension method?

I am writing a test that depends on the results of an extension method but I don't want a future failure of ... but our budget isn't increasing any time soon. Question&Answers:os...

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

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git - Why can't I push from a shallow clone?

The git clone --depth command option says --depth <depth> Create a shallow clone with a history truncated ... shallow cloners. Next - Narrow clones possibly. Question&Answers:os...

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

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python - TypeError: '<=' not supported between instances of 'str' and 'int'

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

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PHP string replace match whole word

I would like to replace just complete words using php Example : If I have $text = "Hello hellol hello, ... Helloz PHP returns NEW hello1 hello, NEWz Thanks. Question&Answers:os...

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

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r - Update data frame via function doesn't work

I ran into a little problem using R In the following data frame test <- data.frame(v1=c(rep(1,3),rep(2,3 ... frame in the function? Thanks a lot for any help! Question&Answers:os...

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

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python - Is it possible to dereference variable id's?

Can you dereference a variable id retrieved from the id function in Python? For example: dereference(id(a ... understand that there are more practical methods. Question&Answers:os...

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

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c# - Allow Windows service to interact with desktop

How do I enable "Allow service to interact with desktop" programmatically? In services.msc > Action > Properties > Log On ... to play sound (MP3, WAV, etc.). Question&Answers:os...

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

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c# - How do I clean SqlDependency from SQL Server memory?

How do I clean up the SQL Server to get rid of expired SqlDependency objects? After I receive ... dep.OnChange -= dependency_OnChange; RegisterTableListener(); Question&Answers: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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javascript - Find DOM element by ID when ID contains square brackets?

I have a DOM element with an ID similar to: something[500] which was built by my Ruby on Rails application. ... result is always null or just an empty string. Question&Answers:os...

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

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76 views

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javascript - How to retrieve the display property of a DOM element?

<html> <style type="text/css"> a { display: none; } </style> <body> <p id="p"> a paragraph ... ? How could I retrieve the display property correctly? Thanks. Question&Answers:os...

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

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javascript - How does this recursion work?

This is an example from Eloquent Javascript: By starting from the number 1 and repeatedly either adding 5 or multiplying by 3, an ... (((1 * 3) + 5) * 3) Question&Answers:os...

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

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html - Can I use div as a direct child of UL?

I'm having this code: <ul> <div> </div> </ul> I feel no issue in my browser rendering it. I have ... //css-tricks.com/forums/discussion/11593/divs-inside-uls/p1 Question&Answers:os...

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

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595 views

1 answer

windows - How to wait all batch files to finish before exiting?

I have a main batch file than calls 4 other batch files so we can run in parallel. Example: Main.bat start call ... Hoping someone could help me! Thank you! :) Question&Answers:os...

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

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sas - Why won't my macro variable resolve?

I have a macro variable, &myvar, but it won't resolve when I try to put it in a data step variable. Why won't it, ... ; data _null_; x='&myvar.'; put x=; run; Question&Answers:os...

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

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259 views

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vb.net - OleDbException was unhandled.......Syntax error in UPDATE statement

I get that Error when i debug please can someone help please... Below is the code: Private Sub ... End With End If End Sub help please Question&Answers:os...

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

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157 views

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java - Access ViewPager Fragment method from Activity

This is my scenario: I have ViewPager in my Activity which hosts 6 Fragment. I disabled paging by swiping with finger ... , i removed it and now working well. Question&Answers:os...

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

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239 views

1 answer

python - Freezing/Hanging tkinter GUI in waiting for the thread to complete

My interface is freezing on pressing the button. I am using threading but I am not sure why is still hanging. ... = helloCallBack) B.pack() top.mainloop() Question&Answers:os...

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

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239 views

1 answer

algorithm - How to find list of possible words from a letter matrix [Boggle Solver]

Lately I have been playing a game on my iPhone called Scramble. Some of you may know this game as Boggle. Essentially, ... , PHP (live link), ~5s (~2s locally) Question&Answers:os...

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

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208 views

1 answer

c++ - When to use dynamic vs. static libraries

When creating a class library in C++, you can choose between dynamic (.dll, .so) and static (.lib, .a) ... between them and when is it appropriate to use which? Question&Answers:os...

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

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