OStack Q&A-Knowledge Sharing Community

0 votes

117 views

1 answer

javascript - Convert string with commas to array

How can I convert a string to a JavaScript array? Look at the code: var string = "0,1"; var array ... chance to convert such string into a JavaScript array? Question&Answers:os...

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

0 votes

389 views

1 answer

Can't Find Theme.AppCompat.Light for New Android ActionBar Support

I am trying to implement the new ActionBar support library that was released by Google a couple days ago. In the ... .jar is loading, but not the resources. Question&Answers:os...

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

0 votes

70 views

1 answer

c# - Storing WPF Image Resources

For a WPF application which will need 10 - 20 small icons and images for illustrative purposes, is storing ... should load the image from an embedded resource? Question&Answers:os...

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

0 votes

203 views

1 answer

regex - Is it worth using Python's re.compile?

Is there any benefit in using compile for regular expressions in Python? h = re.compile('hello') h.match('hello world') vs re.match('hello', 'hello world') Question&Answers:os...

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

0 votes

921 views

1 answer

base64 - What is base 64 encoding used for?

I've heard people talking about "base 64 encoding" here and there. What is it used for? Question&Answers:os...

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

0 votes

123 views

1 answer

Interfaces vs Types in TypeScript

What is the difference between these statements (interface vs type) in TypeScript? interface X { a: number b: string } type X = { a: number b: string }; Question&Answers:os...

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

0 votes

172 views

1 answer

oop - Constructors in JavaScript objects

Can JavaScript classes/objects have constructors? How are they created? Question&Answers:os...

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

0 votes

217 views

1 answer

java - How to directly initialize a HashMap (in a literal way)?

Is there some way of initializing a Java HashMap like this?: Map<String,String> test = new HashMap<String, ... are known in advance when creating the Map. Question&Answers:os...

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

0 votes

214 views

1 answer

cocoa - Exception thrown in NSOrderedSet generated accessors

On my Lion app, I have this data model: The relationship subitems inside Item is ordered. Xcode 4.1 (build 4B110) has ... . Let's hope this is the right time :) Question&Answers:os...

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

0 votes

99 views

1 answer

javascript - What does (function($) {})(jQuery); mean?

I am just starting out with writing jQuery plugins. I wrote three small plugins but I have been simply copying the ... d like to know about the others as well. Question&Answers:os...

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

0 votes

417 views

1 answer

http - Detecting request type in PHP (GET, POST, PUT or DELETE)

How can I detect which request type was used (GET, POST, PUT or DELETE) in PHP? Question&Answers:os...

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

0 votes

269 views

1 answer

command line - What is a faster alternative to Python's http.server (or SimpleHTTPServer)?

Python's http.server (or SimpleHTTPServer for Python 2) is a great way of serve the contents of the current ... a faster alternative that is just as convenient? Question&Answers:os...

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

0 votes

774 views

1 answer

types - What is the size of column of int(11) in mysql in bytes?

What is the size of column of int(11) in mysql in bytes? And Maximum value that can be stored in this columns? Question&Answers:os...

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

0 votes

223 views

1 answer

r - How to split data into training/testing sets using sample function

I've just started using R and I'm not sure how to incorporate my dataset with the following sample code: sample( ... file, and size how many samples I have? Question&Answers:os...

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

0 votes

52 views

1 answer

javascript - How to check file input size with jQuery?

I have a form with file upload capabilities and I would like to be able to have some nice client side error ... posting the file back to the server to check? Question&Answers:os...

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

0 votes

204 views

1 answer

How to change current Theme at runtime in Android

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

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

0 votes

74 views

1 answer

javascript - Interface type check with Typescript

This question is the direct analogon to Class type check with TypeScript I need to find out at runtime if a variable ... a method implements. How can I use it ? Question&Answers:os...

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

0 votes

188 views

1 answer

Is there a simple way to convert C++ enum to string?

Suppose we have some named enums: enum MyEnum { FOO, BAR = 0x50 }; What I googled for is a script (any ... solutions proposed until now is just not an option. Question&Answers:os...

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

0 votes

231 views

1 answer

c# - How do I check if a given string is a legal/valid file name under Windows?

I want to include a batch file rename functionality in my application. A user can type a destination filename pattern and ... the best way to do such a check? Question&Answers:os...

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

0 votes

729 views

1 answer

python - multiprocessing: How do I share a dict among multiple processes?

A program that creates several processes that work on a join-able queue, Q, and may eventually manipulate a global ... and how I can synchronize access to D? Question&Answers:os...

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

0 votes

81 views

1 answer

javascript - How to get the raw value an <input type="number"> field?

How can i get the "real" value of an <input type="number"> field? I have an input box, and i'm ... above (updated) Quirkmode.org entry for the new input types Question&Answers:os...

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

0 votes

313 views

1 answer

c++ - Floating point division vs floating point multiplication

Is there any (non-microoptimization) performance gain by coding float f1 = 200f / 2 in comparision ... vastly more complicated in hardware than multiplication Question&Answers:os...

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

0 votes

193 views

1 answer

c++ - Does C++11 allow vector<const T>?

Container requirements have changed from C++03 to C++11. While C++03 had blanket requirements (e.g. copy ... vector<T> where T has a const member). Question&Answers:os...

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

0 votes

276 views

1 answer

c# - Enum "Inheritance"

I have an enum in a low level namespace. I'd like to provide a class or enum in a mid level namespace ... structure as an enum. The service cannot be changed. Question&Answers:os...

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

0 votes

221 views

1 answer

c++ - Will two atomic writes to different locations in different threads always be seen in the same order by other threads?

Similar to my previous question, consider this code -- Initially -- std::atomic<int> x{0}; std::atomic ... would prevent the weird outcome. Can anyone explain? Question&Answers:os...

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

0 votes

206 views

1 answer

fxml - Javafx - Can application class be the controller class

I'm currently teaching myself JavaFX, and I've taken a simple example program that's hardcoded the view and ... when being called back from JavaFX actions)? Question&Answers:os...

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

0 votes

457 views

1 answer

git checkout - What are the differences between double-dot ".." and triple-dot "..." in Git commit ranges?

Some Git commands take commit ranges and one valid syntax is to separate two commit names with two dots .., and ... .. What are the differences between the two? Question&Answers:os...

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

0 votes

307 views

1 answer

Node.js: what is ENOSPC error and how to solve?

I have a problem with Node.js and uploading files to server. For uploading files to server I use this plugin. When ... /vol overflow 1.0M 1.0M 0 100% /tmp Question&Answers:os...

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

Categories

Recent questions

Just Browsing Browsing

Most popular tags