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I am trying to create an application that stores stock prices with high precision. Currently I am using a double to ... I can't figure it out. See Question&Answers more detail:os...

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

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Uploading Video with iPhone

Is it possible to upload video to a server? I know that images are possible. If someone can just point me ... that would be awesome. 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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python - Can a decorator of an instance method access the class?

I have something roughly like the following. Basically I need to access the class of an instance method from a decorator ... a call to come in. 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 a C# Reference and a Pointer?

I do not quite understand the difference between a C# reference and a pointer. They both point to a place in ... Have I missed a massive point? 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 it pythonic for a function to return multiple values?

In python, you can have a function return multiple values. Here's a contrived example: def divide(x, y): ... line and define a different 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# FileStream : Optimal buffer size for writing large files?

Suppose I'm writing a couple of files to disk, between 2MB and 5GB. What are sensible buffer values for the ... I stick to kilobyte-buffers ? See Question&Answers more detail:os...

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

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download - Getting around Chrome's Malicious File Warning

I created an application which comprises a number of *.exe files. I've packaged these up into an NSIS ... to avoid this nasty message? 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 - Remove application icon and title from Honeycomb action bar

How can I remove the application icon & title which comes by default in an action bar? There is a similar question ... talk about how to 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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Android Split Action Bar with Action Items on the top and bottom?

Is there a way to specify some action items to the top part of the Split Action Bar while the others go to ... bottom part of the split only? See Question&Answers more detail:os...

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

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Rotate a Matrix in R by 90 degrees clockwise

I have a matrix in R like this: |1|2|3| |1|2|3| |1|2|3| Is there an easy way to rotate the entire matrix by 90 ... |2|1| |3|2|1| |3|2|1| ? 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 - PHP PDO vs normal mysql_connect

Should I use php PDO or normal mysql_connect to execute database queries in PHP? Which one is faster? One ... to the traditional mysql_connect? See Question&Answers more detail:os...

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

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winapi - Building libcurl with SSL support on Windows

I'm using libcurl in a Win32 C++ application. I have the curllib.vcproj project added to my solution and ... build it with SSL support enabled? See Question&Answers more detail:os...

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

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Cannot resolve symbol 'Theme' in styles.xml (Android Studio)

Since today, Android Studio can't find the AppCompat themes in styles.xml, but for example AppCompatActivity in code ... :2.1.0' } See Question&Answers more detail:os...

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

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regex - How would I get everything before a : in a string Python

I am looking for a way to get all of the letters in a string before a : but I have no idea on where to ... me a example on what I could do? See Question&Answers more detail:os...

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

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Find min / max value in Swift Array

Given an array of Swift numeric values, how can I find the minimum and maximum values? I've so far got a simple ( ... as Ruby's .min and .max. See Question&Answers more detail:os...

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

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sorting - How to sort git tags by version string order of form rc-X.Y.Z.W?

When I enter a command: git tag -l I get such results: rc-0.9.0.0 rc-0.9.0.1 rc-0.9.0.10 ... possible to sort current list to get such results? 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 - jQuery: How to detect window width on the fly?

I have a scrolling element on my page (with the jScrollPane jQuery plugin). What I want to accomplish is a way ... 15, scrollbarMargin:52 }); } See Question&Answers more detail:os...

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

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Constructing a co-occurrence matrix in python pandas

I know how to do this in R. But, is there any function in pandas that transforms a dataframe to an nxn co- ... would be a way to optimize 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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regex - R dplyr: rename variables using string functions

(Somewhat related question: Enter new column names as string in dplyr's rename function) In the middle of a dplyr chain (% ... # ... 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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algorithm - Given an array, find out the next smaller element for each element

Given an array find the next smaller element in array for each element without changing the original order of ... would be highly 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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796 views

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.htaccess - How to remove index.php from URLs?

All of my URLs on my Magento installation require index.php in them, like: http://example.com/index.php/admin ... not work as suggested here. 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# - What method in the String class returns only the first N characters?

I'd like to write an extension method to the String class so that if the input string to is longer than the ... the first N characters of str? 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 - Parsing a CSV file using NodeJS

With nodejs I want to parse a .csv file of 10000 records and do some operation on each row. I tried ... suggest any alternative ideas here? See Question&Answers more detail:os...

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

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307 views

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javascript - setState() inside of componentDidUpdate()

I'm writing a script which moves dropdown below or above input depending on height of dropdown and position of the input ... /DropDown> ); } }); See Question&Answers more detail:os...

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

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659 views

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python - glob exclude pattern

I have a directory with a bunch of files inside: eee2314, asd3442 ... and eph. I want to exclude all files that ... function. How can I 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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766 views

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cocoa touch - How can I display a splash screen for longer on an iPhone?

How can I display a splash screen for a longer period of time than the default time on an iPhone? See Question&Answers more detail:os...

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

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250 views

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Replace contents of factor column in R dataframe

I need to replace the levels of a factor column in a dataframe. Using the iris dataset as an example, how would I ... = 'virginica'] <- 'setosa' 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 - Drag and drop items in RecyclerView with GridLayoutManager

What I want to achieve: Have a RecyclerView with GridLayoutManager that supports drag'n'drop and that rearranges ... for ListViews for years? See Question&Answers more detail:os...

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

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