Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Recent
Hot!
Most votes
Most answers
Most views
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions
0
votes
205
views
1
answer
javascript - JSON security best practices?
While researching the issue of JSON vs XML, I came across this question. Now one of the reasons to ... unpredictable URLs to increase security? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
367
views
1
answer
ios - Tweening / Interpolating between two CGPaths / UIBeziers
I have a CAShapeLayer which contains a CGPath. Using the built-in animation of iOS I can easily morph this path ... way to ask iOS for this? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ios
0
votes
348
views
1
answer
javascript - Return an empty Observable
The function more() is supposed to return an Observable from a get request export class Collection { public more = ... from 'rxjs' return EMPTY; See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
663
views
1
answer
jquery - fancybox2 / fancybox causes page to to jump to the top
I have implemented fancybox2 on a dev site. When I engage the fancybox (click the link etc) the whole ... gallery. Has anyone experienced this? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
jquery
0
votes
705
views
1
answer
What does $1 [QSA,L] mean in my .htaccess file?
I need to change my .htaccess and there are two lines which I don't understand. RewriteCond %{REQUEST_FILENAME} ! ... I should use these lines ? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
What
0
votes
748
views
1
answer
R Error in x$ed : $ operator is invalid for atomic vectors
Here is my code: x<-c(1,2) x names(x)<- c("bob","ed") x$ed Why do I get the following error? ... x$ed : $ operator is invalid for atomic vectors See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
R
0
votes
501
views
1
answer
objective c - UIGestureRecognizer blocks subview for handling touch events
I'm trying to figure out how this is done the right way. I've tried to depict the situation: I'm ... return [self.subviews lastObject]; } See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
239
views
1
answer
python - Matplotlib: display plot on a remote machine
I have a python code doing some calculation on a remote machine, named A. I connect on A via ssh from a ... display the figure on machine B? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
665
views
1
answer
security - How do I generate a SALT in Java for Salted-Hash?
I've been looking around and the closest answer is : How to generate a random alpha-numeric string? I want to ... vote up for the best answer. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
security
0
votes
876
views
1
answer
c# - How do I set up HttpContent for my HttpClient PostAsync second parameter?
public static async Task<string> GetData(string url, string data) { UriBuilder fullUri = new UriBuilder(url); if ... obviously that won't work See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c#
0
votes
292
views
1
answer
ios - Why Xcode 7 shows *.tbd instead of *.dylib?
Xcode 7 In Target > BuildPhases > Link Binary With Libraries > tap + button When choosing frameworks to add, you ... can find the *.dylib files See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ios
0
votes
357
views
1
answer
java - In JPA 2, using a CriteriaQuery, how to count results
I am rather new to JPA 2 and it's CriteriaBuilder / CriteriaQuery API: CriteriaQuery javadoc CriteriaQuery in the ... . Is there a solution? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
488
views
1
answer
ios - Unbalanced calls to begin/end appearance transitions for <UITabBarController: 0x197870>
I read SO about another user encountering similar error, but this error is in different case. I received this ... developing iOS 4.3 app. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ios
0
votes
605
views
1
answer
swift - iOS 11 customise search bar in navigation bar
I want to change the color of the text and icon in the iOS 11 searchbar when it is embedded in the navigation ... 11. Any help is appreciated. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
swift
0
votes
386
views
1
answer
tracking - Track mass email campaigns
Litmus released an email analytics service last month (may 2010). See here: http://litmusapp.com/email-analytics They ... works, I've tested. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
tracking
0
votes
341
views
1
answer
python - How to receive json data using HTTP POST request in Django 1.6?
I am learning Django 1.6. I want to post some JSON using HTTP POST request and I am using Django for this ... posted data in Django 1.6? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
277
views
1
answer
javascript - RequireJS: How to define modules that contain a single "class"?
I have a number of JavaScript "classes" each implemented in its own JavaScript file. For development those files are loaded ... , "Smith"); }); See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
179
views
1
answer
How is audio represented with numbers in computers?
I like thinking about how everything can be and is represented by numbers. For example, plaintext is represented by ... on the internet, though. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
294
views
1
answer
android - Custom PreferenceCategory Headings
I have a simple preference screen defined like this <PreferenceScreen xmlns:android="http://schemas.android ... the PreferenceCategory heading? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
android
0
votes
432
views
1
answer
iphone - Apple gyroscope sample code
I am planning to develop an gyroscope based project like rotating an opengl texture using gyroscope data, is there ... if any sample available.. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
iphone
0
votes
623
views
1
answer
proper way to sudo over ssh
I have a script which runs another script via SSH on a remote server using sudo. However, when I type the ... the password appearing as I type? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
proper
0
votes
237
views
1
answer
sensors - How to use Kalman filter in Python for location data?
[EDIT] The answer by @Claudio gives me a really good tip on how to filter out outliers. I do want to ... right direction? All tips are welcome! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
sensors
0
votes
319
views
1
answer
python - Access django models inside of Scrapy
Is it possible to access my django models inside of a Scrapy pipeline, so that I can save my scraped data straight to ... get how to set it up? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
223
views
1
answer
/** and /* in Java Comments
What's the difference between /** * comment * * */ and /* * * comment * */ in Java? When should I use them? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
/**
0
votes
558
views
1
answer
Swift Array - Check if an index exists
In Swift, is there any way to check if an index exists in an array without a fatal error being thrown? I ... error: Array index out of range See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Swift
0
votes
290
views
1
answer
python - Filter Pyspark dataframe column with None value
I'm trying to filter a PySpark dataframe that has None as a row value: df.select('dt_mvmt').distinct().collect ... category. What's going on? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
276
views
1
answer
c++ - What does string::npos mean in this code?
What does the phrase std::string::npos mean in the following snippet of code? found = str.find(str2); if (found ! ... < int(found) << std::endl; See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
429
views
1
answer
php - How to determine the memory footprint (size) of a variable?
Is there a function in PHP (or a PHP extension) to find out how much memory a given variable uses? ... extensions or debug tools is feasible. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
php
Page:
« prev
1
...
593
594
595
596
597
598
599
600
601
602
603
...
715
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] how to change error messege in crispy form django
[2] python - getting strict-origin-when-cross-origin although i provided CORS_ORIGIN_ALLOW_ALL = True in settings.py file
[3] reactjs - IOS problem with Invariant Violation: The navigation prop is missing for this navigator after updating React Navigation to 4.0
[4] c++ - How to emulate class template argument deduction pre-C++17?
[5] How can I make upstream exceptions return UnprocessableEntityResult with ASP.NET Core?
[6] unit testing - Making python COM client testable
[7] C# Wix Execute CA After Install
[8] java注解的使用 问题
[9] IndexError: list index out of range and python(With array 2D)
[10] 求分库汇总查询思路
2.1m
questions
2.1m
answers
60
comments
57.0k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
Recent questions
...