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
399
views
1
answer
node.js - Node Sass does not yet support your current environment: Linux 64-bit with false
Getting this error on Arch Linux with node-sass. I'm using it with gulp-sass. Node Sass does not yet ... node-sass is not changing anything. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
node.js
0
votes
1.1k
views
1
answer
ruby on rails - EOFError: end of file reached issue with Net::HTTP
I am using ruby-1.8.7-p302/Rails 2.3.11. I am trying to use FQL (Facebook API) to get stats for a link. ... this could be a bug in Net::HTTP. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ruby
0
votes
199
views
1
answer
Correct way to remove plugin from Eclipse
Last times, I'm facing problem of removing plugins from Eclipse. symptoms: 1. if removing thru already ... Share,please,your experience. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Correct
0
votes
464
views
1
answer
mysql - Is there a way to "limit" the result with ELOQUENT ORM of Laravel?
Is there a way to "limit" the result with ELOQUENT ORM of Laravel? SELECT * FROM `games` LIMIT 30 , 30 And with Eloquent ? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
mysql
0
votes
213
views
1
answer
How do I know which version of Javascript I'm using?
I'm just reading this documentation about Javascript 1.2, but I'm wondering which version of ... com/javascript/javascript_nested_functions.htm See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
346
views
1
answer
How to disable night mode in my application even if night mode is enable in android 9.0 (pie)?
I created my application before the android pie has been released, in every layout I put android: background = " ... my color primary is red. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
678
views
1
answer
browser - How to use curl to get a GET request exactly same as using Chrome?
I have a web api http://something.com/api and I want to use GET to get the response body. This is my ... other fields? Thank you very much. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
browser
0
votes
722
views
1
answer
set - Naming of TypeScript's union and intersection types
I can't understand the logic behind the terms union types and intersection types in TypeScript. Pragmatically, if the ... cannot figure it out. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
set
0
votes
735
views
1
answer
numpy - Fastest way to compute entropy in Python
In my project I need to compute the entropy of 0-1 vectors many times. Here's my code: def entropy(labels) ... n_classes) Is there a faster way? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
numpy
0
votes
254
views
1
answer
Eclipse won't start but no error is shown
Any idea why my Eclipse isn't starting? The eclipse.ini has the following: -startup plugins/org.eclipse. ... .findLocalClass(DefaultClassLoader.java:216) at org.eclipse.osgi.i...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Eclipse
0
votes
331
views
1
answer
sql - Using a database table as a queue
I want to use a database table as a queue. I want to insert in it and take elements from it in the ... ? Should I use any special indexes? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
sql
0
votes
355
views
1
answer
JavaScript / jQuery closure function syntax
Can someone please explain the differences between the following functions: (function($){ // can do something like $. ... (){ }); Thanks! See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
JavaScript
0
votes
510
views
1
answer
responsive design - How to code CSS media queries targeting ALL mobile devices and tablets?
@media only screen and (max-device-width : 640px) { /* Styles */ } @media only screen and (max-device-width: ... guess. Where am I going wrong? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
responsive
0
votes
305
views
1
answer
ios - After switching to Xcode 7, app size grew from 9 MB to 60 MB, is there a fix?
I've been going backwards in Git history to find the cause of a humongous file size change, but the only real reason I ... . It used to be 9 MB. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
ios
0
votes
256
views
1
answer
How to create a release android library package (aar) in Android Studio (not debug)
I have built my android library package (aar) and the result of build is created in "..appuildoutputsaar" folder. ... of "app-release.aar". See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
749
views
1
answer
Not possible to source .bashrc with Ansible
I can ssh to the remote host and do a source /home/username/.bashrc - everything works fine. However if I do: - ... idea what I'm doing wrong... See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Not
0
votes
366
views
1
answer
Using git diff, how can I get added and modified lines numbers?
Assuming I have a text file alex bob matrix will be removed git repo and I have updated it to be alex new ... diff or any other git command? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Using
0
votes
670
views
1
answer
python - Find the index of the k smallest values of a numpy array
In order to find the index of the smallest value, I can use argmin: import numpy as np A = np.array([1, 7, ... values. k will never be > 10. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
267
views
1
answer
How to select specific form element in jQuery?
I have two form like this: <form id='form1' name='form1'> <input name='name' id='name'> <input ... how to select specific form elements only? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
How
0
votes
453
views
1
answer
c++ - How to break when a specific exception type is thrown in GDB?
According to the documentation I can break on specific exception type by using conditional breakpoints. However ... of bad_function_call works. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
c++
0
votes
254
views
1
answer
.net - Using Entity Framework entities as business objects?
I'm using Entity Framework O/R mapper from Microsoft and using entity classes (generated classes that are mapped ... objects as data members? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
.net
0
votes
537
views
1
answer
error handling - Why are Exceptions said to be so bad for Input Validation?
I understand that "Exceptions are for exceptional cases" [a], but besides just being repeated over and over ... just Exceptions in disguise. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
error
0
votes
375
views
1
answer
Storing datetime as UTC in PHP/MySQL
Everywhere I read about converting time to a user's timezone says that the best method is to store a date and time ... now() to store UTC time? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
Storing
0
votes
557
views
1
answer
python - unicode().decode('utf-8', 'ignore') raising UnicodeEncodeError
Here is the code: >>> z = u'u2022'.decode('utf-8', 'ignore') Traceback (most recent call last): File ... error raised when I am using 'ignore'? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
python
0
votes
1.2k
views
1
answer
flutter - How to use BottomNavigationBar with Navigator?
The Flutter Gallery example of BottomNavigationBar uses a Stack of FadeTransitions in the body of the Scaffold. I ... any examples of this? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
flutter
0
votes
291
views
1
answer
sql - Hierarchical/tree database for directories path in filesystem
I want to store the directories (present on the disk) into a database, maintaining their hierarchical/tree ... like ROOT/Dir2/Dir4/Dir7 See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
sql
0
votes
403
views
1
answer
iphone - How To Create A Gallery on iOS
I'm starting to develop a simple application for iOS, and this application is a simple gallery of some photo ( ... resolution), am I right? See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
iphone
0
votes
220
views
1
answer
android - Fast Scroll display problem with ListAdapter and SectionIndexer
I have a list of events which are seperated by month and year (Jun 2010, Jul 2010 etc.). I have enabled ... any clarification, or code just ask. See Question&Answers more detail:os...
asked
Oct 17, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
android
Page:
« prev
1
...
637
638
639
640
641
642
643
644
645
646
647
...
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] go - Parsing ARN from IAM Policy using Regex - Golang
[2] 正则表达式匹配字符串中出现a,b,c三个字母各一次并且顺序任意
[3] echarts 用户自己选择颜色
[4] c++ - Indentation after for instruction in xcode doesn't work
[5] A服务器上远程访问B服务器的mysql,提示Access denied且提示是一个本地IP
[6] Java hashmap algorithm checking values
[7] axios发请求报错,但是却掉到成功的回调函数中了?
[8] subdirectory - cPanel: Protect a directory with ALL ITS SUBDIRECTORIES with a password
[9] 我电脑的github 突然进不去了 谷歌浏览器 其他浏览器可以
[10] How can I get [checkbox] mail tag values into a unordered list inside the email in CF7?
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
...