OStack Q&A-Knowledge Sharing Community

0 votes

162 views

1 answer

security - Password hashing, salt and storage of hashed values

Suppose you were at liberty to decide how hashed passwords were to be stored in a DBMS. Are there ... server' and username components are less important). Question&Answers:os...

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

0 votes

272 views

1 answer

math - Implementing Ray Picking

I have a renderer using directx and openGL, and a 3d scene. The viewport and the window are of the same ... coordinates x and y in a platform independent way? Question&Answers:os...

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

0 votes

237 views

1 answer

javascript - How to silently hide "Image not found" icon when src source image is not found

Do you know how to hide the classic Image not found icon from a rendered HTML page when an image ... found? Any working method using JavaScript/jQuery/CSS? Question&Answers:os...

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

0 votes

315 views

1 answer

c# - Determine if a sequence contains all elements of another sequence using Linq

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

322 views

1 answer

.net - C# Thread Termination and Thread.Abort()

In MSDN, the description of the Thread.Abort() method says: "Calling this method usually terminates the ... there any other possibility to terminate threads? Question&Answers:os...

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

0 votes

131 views

1 answer

android - Why are most UI frameworks single threaded?

For example, Java Swing and Android UI both use a single threaded model where a single UI thread is ... to single-threaded model other than simplicity? Question&Answers:os...

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

0 votes

295 views

1 answer

php - WAMP Cannot access on local network 403 Forbidden

I know this question has been asked a lot of times I followed Most of the answers in the internet But ... local network WAMP 403 Forbidden message on Windows 7 Question&Answers:os...

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

0 votes

54 views

1 answer

Passing an Array as Arguments, not an Array, in PHP

I seem to remember that in PHP there is a way to pass an array as a list of arguments for a function, ... use this particular feature for the last year or so. Question&Answers:os...

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

0 votes

594 views

1 answer

mongodb - Overflow sort stage buffered data usage exceeds internal limit

Using the code: all_reviews = db_handle.find().sort('reviewDate', pymongo.ASCENDING) print all_reviews.count() print ... 33554432 bytes How do I handle this? Question&Answers:os...

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

0 votes

448 views

1 answer

Django Admin Show Image from Imagefield

While I can show an uploaded image in list_display is it possible to do this on the per model page (as in ... uploaded image but not the image itself. Thanks! Question&Answers:os...

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

0 votes

173 views

1 answer

objective c - NSMutableArray - force the array to hold specific object type only

Is there a way to force NSMutableArray to hold one specific object type only? I have classes definitions as ... with code? (and absolutely not other objects) Question&Answers:os...

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

0 votes

314 views

1 answer

algorithm - Simple Python Challenge: Fastest Bitwise XOR on Data Buffers

Challenge: Perform a bitwise XOR on two equal sized buffers. The buffers will be required to be the python str type ... for x in xrange(1000): slow_xor(aa,bb) Question&Answers:os...

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

0 votes

439 views

1 answer

python - Could not find a version that satisfies the requirement tensorflow

I installed the latest version of Python (3.6.4 64-bit) and the latest version of PyCharm (2017.3.3 ... Flask). How can I install Tensorflow? Thanks. Question&Answers:os...

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

0 votes

332 views

1 answer

java - How to use Mockito with JUnit5

How can I use injection with Mockito and JUnit 5? In JUnit4 I can just use the @RunWith(MockitoJUnitRunner. ... Annotation. In JUnit5 is no @RunWith Annotation? Question&Answers:os...

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

0 votes

704 views

1 answer

hash - Is there an MD5 Fixed Point where md5(x) == x?

Is there a fixed point in the MD5 transformation, i.e. does there exist x such that md5(x) == x? Question&Answers:os...

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

0 votes

230 views

1 answer

c# - Entity framework self referencing loop detected

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

534 views

1 answer

java - getting a IllegalBlockSizeException: Data must not be longer than 256 bytes when using rsa

I am using rsa key to encrypt a long string which I will send to my server(will encrypt it with server's ... not at all possible to send long string encrypted? Question&Answers:os...

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

0 votes

231 views

1 answer

r - Get specific object from Rdata file

I have a Rdata file containing various objects: New.Rdata |_ Object 1 (e.g. data.frame) |_ Object 2 ( ... object out of this file and discard the others? Question&Answers:os...

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

0 votes

231 views

1 answer

python - How to decorate all functions of a class without typing it over and over for each method?

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

1.4k views

1 answer

javascript - Flask - Calling python function on button OnClick event

I am new to python and Flask. I have a Flask Web App with a button. When I click on the button I ... a button --Flask Button run Python without refreshing page? Question&Answers:os...

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

0 votes

321 views

1 answer

python - Count number of non-NaN entries in each column of Spark dataframe with Pyspark

I have a very large dataset that is loaded in Hive. It consists of about 1.9 million rows and 1450 columns. I need ... on and I don't have rights to install it. Question&Answers:os...

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

0 votes

1.0k views

1 answer

model view controller - Unable to set data attribute using jQuery Data() API

I've got the following field on an MVC view: @Html.TextBoxFor(model => model.Course.Title, new { data_helptext = "Old ... "Course.Title" type="text" value="" /> Question&Answers:os...

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

0 votes

746 views

1 answer

coding style - Stand-alone Java code formatter/beautifier/pretty printer?

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)

0 votes

127 views

1 answer

Android dependency has different version for the compile and runtime

After updating Android Studio from Canary 3 to Canary 4, the following error is thrown at the build time. ... Note: Project was building fine in Canary 3 Question&Answers:os...

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

0 votes

78 views

1 answer

java - How to add image in a TextView text?

I've searched around on Google and came across this site where I found a question similar to mine in which how ... down for me that would be much appreciated. Question&Answers:os...

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

0 votes

349 views

1 answer

r - ggplot combining two plots from different data.frames

I want to combine two ggplots, from two different data.frames, into one plot. Below you will find the code. I want ... 't get it to work. Thanks for your time. Question&Answers:os...

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

0 votes

98 views

1 answer

sql server 2000 - Is SQL IN bad for performance?

I have a query doing something like: SELECT FieldX, FieldY FROM A WHERE FieldW IN (108, 109, 113, 138, 146, ... inside the procedure. I'm using SQL Server 2000 Question&Answers:os...

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

0 votes

689 views

1 answer

static typing - What is the purpose of type ascriptions in Scala?

There's not much info in the spec on what type ascription is, and there certainly isn't anything in there about ... p.asInstanceOf[String].length res9: Int = 4 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