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
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)
Hot questions
0
votes
307
views
1
answer
node.js - Change node_modules location
Is there a way to change the node_modules folder location? For example: - dir1 - dir2 - node_modules to: - dir1 - dir2 - node_modules See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
node.js
0
votes
225
views
1
answer
ios - Workaround on the threads limit in Grand Central Dispatch?
With Grand Central Dispatch, one can easily perform time consuming task on non-main thread, avoid blocking the main ... this? Thanks in advance! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ios
0
votes
665
views
1
answer
objective c - How Do I Blur a Scene in SpriteKit?
How would I add a gaussian blur to all nodes (there's no fixed number of nodes) in an SKScene in SpriteKit? A ... this is what I'm going for: See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
objective
0
votes
297
views
1
answer
Java decimal formatting using String.format?
I need to format a decimal value into a string where I always display at lease 2 decimals and at most 4. So ... better way to do this in Java. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Java
0
votes
268
views
1
answer
How to execute a function asynchronously every 60 seconds in Python?
I want to execute a function every 60 seconds on Python but I don't want to be blocked meanwhile. How can I ... I cancel it? Thanks in advance! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
1.3k
views
1
answer
python - Difference between data type 'datetime64[ns]' and '<M8[ns]'?
I have created a TimeSeries in pandas: In [346]: from datetime import datetime In [347]: dates = [datetime(2011, ... do I get a different type? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
501
views
1
answer
java - How to conditionally enable or disable scheduled jobs in Spring?
I am defining scheduled jobs with cron style patterns in Spring, using the @Scheduled annotation. The cron pattern is ... be a better solution. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
514
views
1
answer
sql - How do I select all the columns from a table, plus additional columns like ROWNUM?
In Oracle, it's possible to do a SELECT statement that returns the row number as a column in your result set. For ... 2 Bob Jones 3 4 Any ideas? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
sql
0
votes
330
views
1
answer
android - Error inflating class androidx.constraintlayout.ConstraintLayout after migration to androidx
I just made a migration to androidx through Android Studio menu option Refactor -> Refactor to AndroidX I'm ... .run(ZygoteInit.java:1063) See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
android
0
votes
152
views
1
answer
How to set Python3.5.2 as default Python version on CentOS?
Is there a way to set the Python 3.5.2 as the default Python version on CentOS 7? currently, I have ... Python2.7 as default Python version? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
454
views
1
answer
Can Android's WebView automatically resize huge images?
In some web browsers, huge images are automatically resized to fit the screen. Is it possible to do the same in ... of the image in advance. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Can
0
votes
506
views
1
answer
java - How to assign bean's property an Enum value in Spring config file?
I have a standalone enum type defined, something like this: package my.pkg.types; public enum MyEnumType { TYPE1, ... Enum into a spring bean? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
java
0
votes
383
views
1
answer
expression - What is the purpose of the unary plus (+) operator in C?
In C, it's legal to write something like: int foo = +4; However, as far as I can tell, the unary plus (+) in +4 is a no-op. Is it? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
expression
0
votes
602
views
1
answer
mysql - SQL Query to get column values that correspond with MAX value of another column?
Ok, this is my query: SELECT video_category, video_url, video_date, video_title, short_description, MAX(video_id) ... BY video_category ASC See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mysql
0
votes
362
views
1
answer
html - In Javascript, how do I "clear" the back (history -1)?
When the user loads the page, I immediately do a window redirect to another location. The problem is, when the ... goes back TWO pages instead? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
html
0
votes
405
views
1
answer
ecmascript 6 - Why is the response object from JavaScript fetch API a promise?
When requesting from a server with JavaScript fetch API, you have to do something like fetch(API) .then(response ... better ways to handle this? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ecmascript
0
votes
834
views
1
answer
swift - How do I check if a firebase database value exists?
I'm using the Realtime Database with Google's Firebase, and I'm trying to check if a child exists. My ... Comment if any clarification is needed See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
swift
0
votes
204
views
1
answer
Invoking Java main method with parameters from Eclipse
During development (and for debugging) it is very useful to run a Java class' public static void main(String[] ... time (with a nice history). See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Invoking
0
votes
1.4k
views
1
answer
events - Remove key press delay in Javascript
I have the following problem: I'm trying to write a Javascript game, and the character is being controlled by ... Does anybody have an idea? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
events
0
votes
366
views
1
answer
globalization - How to set decimal separators in ASP.NET MVC controllers?
I'm working with the NerdDinner application trying to teach myself ASP.NET MVC. However, I have stumbled upon a ... but that didn't help. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
globalization
0
votes
425
views
1
answer
datetimeoffset - Subtract 1 day with PHP
I'm trying to take a date object that's coming out of my Drupal CMS, subtract one day and print out both ... The output always comes out blank. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
datetimeoffset
0
votes
160
views
1
answer
Android ViewPager get the current View
I have a ViewPager, and I'd like to get the current selected and visible view, not a position. ... view.findViewById(R.id.ListViewItems); See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Android
0
votes
468
views
1
answer
javascript - How to copy all the attributes of one element and apply them to another?
How do I copy the attributes of one element to another element? HTML <select id="foo" class="bar baz" ... the attributes from $select to $div See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
0
votes
412
views
1
answer
r - Why is enquo + !! preferable to substitute + eval
In the following example, why should we favour using f1 over f2? Is it more efficient in some sense? For ... , clarity, compositionality,...)? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
r
0
votes
578
views
1
answer
c# - How to force a WPF binding to refresh?
I have got a combo box with items source attached using simple binding. Is there any way to refresh this binding once combo box is loaded? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c#
0
votes
120
views
1
answer
How to create generic protocols in Swift?
I'd like to create a protocol with a method that takes a generic input and returns a generic value. This is ... ] as NSArray return user } } See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
230
views
1
answer
c++ - What are the use cases for having a function return by const value for non-builtin type?
Recently I have read that it makes sense when returning by value from a function to qualify the return type ... returned object should be const? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
184
views
1
answer
javascript - How do I get basic auth working in angularjs?
How can I get basic auth working in AngularJs? I've googled and the resources aren't working for me. I'm very new to AngularJS See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
javascript
Page:
« prev
1
...
560
561
562
563
564
565
566
567
568
569
570
...
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] 可以用@RequestBody接收GET请求吗?
[2] django的request.POST和request.body全部都是空
[3] vue库模式打包为什么会自动生成html文件
[4] flutter - Dart, Identifier with exclamation mark in the back
[5] python - Why am I presented with an IndexError and what ways can I make this code more succinct
[6] flutter - Dart, Identifier with exclamation mark in the back
[7] 关于谷歌游览器跟IE游览器页面访问时,样式显示不同
[8] 如何用正则表达式实现字符串反转
[9] switch statement - C: handling case...else
[10] Autodesk Forge Viewer - Invalid OGT header with SVF2 format
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
...