OStack Q&A-Knowledge Sharing Community

0 votes

1.7k views

1 answer

npm - How can I specify the required Node.js version in package.json?

I have a Node.js project that requires Node version 12 or higher. Is there a way to specify this in the ... and inform the users if they need to upgrade? Question&Answers:os...

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

0 votes

322 views

1 answer

ios - How to Correctly handle Weak Self in Swift Blocks with Arguments

In my TextViewTableViewCell, I have a variable to keep track of a block and a configure method where the block is ... how this should work with [unowned self]? Question&Answers:os...

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

0 votes

334 views

1 answer

html - center aligning a fixed position div

I'm trying to get a div that has position:fixed center aligned on my page. I've always been able to ... positioned elements than the way I've outlined above. Question&Answers:os...

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

0 votes

382 views

1 answer

javascript - How do I use jQuery's form.serialize but exclude empty fields

I have a search form with a number of text inputs & drop downs that submits via a GET. I'd like to ... Any idea how I can do this using jQuery? Question&Answers:os...

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

0 votes

178 views

1 answer

bash - In what order should I send signals to gracefully shutdown processes?

In a comment on this answer of another question, the commenter says: don't use kill -9 unless absolutely ... to include these in an orderly process-killing? Question&Answers:os...

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

0 votes

76 views

1 answer

How do I get the Session Object in Spring?

I am relatively new to Spring and Spring security. I was attempting to write a program where I needed ... my server code across multiple user requests. Question&Answers:os...

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

0 votes

405 views

1 answer

ios - UICollectionView: Animate cell size change on selection

What I want to do is change the size of an UICollectionViewCell, and to animate that change, when the cell is selected ... if it could also help me in my case. Question&Answers:os...

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

0 votes

125 views

1 answer

php - Catching multiple exception types in one catch block

I'd like a cleaner way to obtain the following functionality, to catch AError and BError in one block: try { /* ... , so I can't just catch the base class. Question&Answers:os...

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

0 votes

384 views

1 answer

MongoDB Aggregation: How to get total records count?

I have used aggregation for fetching records from mongodb. $result = $collection->aggregate(array( array('$match ... with aggregation? Please advice me. Thanks Question&Answers:os...

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

0 votes

117 views

1 answer

WCF ChannelFactory vs generating proxy

Just wondering under what circumstances would you prefer to generate a proxy from a WCF service when you can just ... a proxy when the server is updated? Thanks Question&Answers:os...

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

0 votes

164 views

1 answer

How to check if a string contains only digits in Java

In Java for String class there is a method called matches, how to use this method to check if my string ... 23343453"; System.out.println(data.matches(regex)); Question&Answers:os...

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

0 votes

205 views

1 answer

M2E and having maven generated source folders as eclipse source folders

I have a maven project in eclipse and have maven goals that run annotation processors to generate code. The output ... to go back to the old m2eclipse version. Question&Answers:os...

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

0 votes

257 views

1 answer

python - What is the official "preferred" way to install pip and virtualenv systemwide?

Is it this, which people seem to recommend most often: $ sudo apt-get install python-setuptools $ sudo ... pip install ... Or something entirely different? Question&Answers:os...

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

0 votes

274 views

1 answer

python - How to create an SQL View with SQLAlchemy?

Is there a "Pythonic" way (I mean, no "pure SQL" query) to define an SQL view with SQLAlchemy? Question&Answers:os...

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

0 votes

292 views

1 answer

javascript - Knockout.js incredibly slow under semi-large datasets

I'm just getting started with Knockout.js (always wanted to try it out, but now I finally have an excuse! ... would dynamically load in more data as you scroll. Question&Answers:os...

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

0 votes

187 views

1 answer

List all javascript events wired up on a page using jquery

Using jQuery, is it possible to get a list of all the events and to which element the event is bound to? Question&Answers:os...

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

0 votes

203 views

1 answer

php - Simple dynamic breadcrumb

I think this script is of big interest to any noob around here :) including me :) What I want to create is a ... Template Some Name ^^ link ^^link ^^plain text Question&Answers:os...

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

0 votes

118 views

1 answer

c# - Replace only some groups with Regex

Let's suppose I have the following regex: -(d+)- and I want to replace, using C#, the Group 1 (d+) ... replace only groups, and keep the rest of the match. Question&Answers:os...

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

0 votes

1.2k views

1 answer

function - Swift optional escaping closure parameter

Given: typealias Action = () -> () var action: Action = { } func doStuff(stuff: String, completion: ... closure is escaping the scope of the function. Question&Answers:os...

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

0 votes

493 views

1 answer

jQuery: click function exclude children.

Trying to wrap my head around the jQuery ".not()" function, and running into a problem. I would like to have the ... affected by clicks.</p> </div> </div> Question&Answers:os...

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

0 votes

404 views

1 answer

findstr - Regex - how to match everything except a particular pattern

How do I write a regex to match any string that doesn't meet a particular pattern? I'm faced with a situation where I have to match an (A and ~B) pattern. Question&Answers:os...

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

0 votes

312 views

1 answer

Why are C# interface methods not declared abstract or virtual?

C# methods in interfaces are declared without using the virtual keyword, and overridden in the derived class without ... is declared virtual final in the IL. Question&Answers:os...

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

0 votes

121 views

1 answer

java - What does the registerNatives() method do?

In java, what does the private static method registerNatives() of the Object class do? Question&Answers:os...

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

0 votes

1.8k views

1 answer

sqlite - Android Persistence room: "Cannot figure out how to read this field from a cursor"

I'm trying to create a relation between two database tables using the new Android Persistence Room Library. I ... the same problem? Thanks a lot in advance Question&Answers:os...

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

0 votes

176 views

1 answer

sql - Counting DISTINCT over multiple columns

Is there a better way of doing a query like this: SELECT COUNT(*) FROM (SELECT DISTINCT DocumentId, DocumentSessionId ... one query (without using a sub-query) Question&Answers:os...

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

0 votes

253 views

1 answer

Eclipse "Server Locations" section disabled and need to change to use Tomcat installation

I have set up a dynamic web project in Eclipse with a Tomcat 5.5 installation. I want to be to set the ... a config file to point at the Tomcat installation? Question&Answers:os...

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

0 votes

476 views

1 answer

How to encode Doctrine entities to JSON in Symfony 2.0 AJAX application?

I'm developing game app and using Symfony 2.0. I have many AJAX requests to the backend. And more ... .. or using NormalizableInterface to avoid cycling.., Question&Answers:os...

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

0 votes

452 views

1 answer

currying - What's the difference between multiple parameters lists and multiple parameters per list in Scala?

In Scala one can write (curried?) functions like this def curriedFunc(arg1: Int) (arg2: String) = { ... ... equivalent for me. Are there any other differences? 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