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)
Recent questions tagged data
0
votes
929
views
1
answer
data binding - WPF DataTrigger - Setting ListBoxItem IsSelected
I have the following data trigger on the ListBoxItems in my Multi-selection ListBox <DataTrigger Value="True"> < ... /Trigger> </Style.Triggers> See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
678
views
1
answer
data binding - Angular 2 modals shared between components
I have a typical Angular 2 app with many components. I installed this modal component: https://github.com/ ... class AppModule{} Stay tuned! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
865
views
1
answer
data recovery - How can I recover files after accidentally running "git clean -df"?
I have accidentally run git clean -df. It removed my files from my current commit, which I had yet to push. ... way to get those files back? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
989
views
1
answer
data recovery - How can I undelete a file using C#?
I'm trying to find some lost .jpg pictures. Here's a .bat file to setup a simplified version of my situation ... trying to approach it: C# code See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
784
views
1
answer
data structures - Why are hash maps better than trie maps?
By trie map I mean an associative array, where the payloads are stored in a trie instead of a hash table. When I ... I've never seen a trie map? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
789
views
1
answer
data cleaning - Fill missing Values by a ratio of other values in Pandas
I have a column in a Dataframe in Pandas with around 78% missing values. The remaining 22% values are divided ... How do I accomplish this? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
787
views
1
answer
data structures - Stop ColdFusion from sorting my structs/arrays
I have data represented in CF as an array of structs e.g.: var foo = [{key = 'bar', value = 'baz ... is expected to be ordered. Any suggestions? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
902
views
1
answer
data structures - LinkedList Struct Typedef in C
I am try to build a basic linked list in C. I seem to get an error for this code: typedef struct { ... 't accept: openGame.next = &ruyLopez; See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
709
views
1
answer
data structures - Hand-over-hand locking with Rust
I'm trying to write an implementation of union-find in Rust. This is famously very simple to implement in languages like ... { x.clone() } } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
820
views
1
answer
data structures - is there union and intersect Haskell Prelude implementation?
Is there in the Standard Prelude functions which implement the union and the intersection of sets ? union :: (Eq a) => [ ... b <- bs, elem b ns] See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
1.1k
views
1
answer
data binding - How can I order Groups in WPF
In WPF, the CollectionViewSource allows for sorting (SortDescriptions) and grouping (GroupDescriptions). However, I can't ... . Is it possible? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
798
views
1
answer
data hiding in C++
I have some code in C, that uses incomplete structs this way ( simplified example ): something.h struct ... enlighten this mortal C coder? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
817
views
1
answer
data structures - Is it necessary to convert infix notation to postfix when creating an expression tree from it?
I want to create an expression tree given expression in infix form. Is it necessary to convert the expression to postfix first ... : / * ^ + -. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
714
views
1
answer
data structures - Explaining PHP Interface
Can you help to clarify PHP Interface for me. I get that the main point is so that multiple classes can ... it would be advantageous? Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
811
views
1
answer
data binding - Dynamically update ion.rangeSlider ngModel in AngularJS directive
I'm trying to update the value of an Ion.RangeSlider when its bound ng-model scope variable changes. The model updates ... "> </div> </div> See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
793
views
1
answer
data structures - Java: why TreeMap is called "Tree" map?
I can't understand why TreeMap is called TreeMap but not SortedMap. As I understand TreeMap is a map that auto sorts ... like a graph. So why? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
862
views
1
answer
data binding - Is it possible to refer to column names via bind variables in Oracle?
I am trying to refer to a column name to order a query in an application communicating with an Oracle ... Any suggestions are much appreciated. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
760
views
1
answer
data structures - Is there any (unbounded) fair blocking queue in java?
Is there any implementation of blocking queue which guarantees fair take() operation if multiple consumers are removing ... but its bounded. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
759
views
1
answer
data structures - Why is parameter to string.indexOf method is an int in Java
I am wondering why the parameter to indexOf method an int , when the description says a char. public int indexOf( ... it even more ! Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
826
views
1
answer
data structures - Getting reference of a sub-matrix in java
I need to do parallel processing of sub-matrices recursively (original matrix divided into 4 passed into a method). ... 't get an answer here. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
639
views
1
answer
data mining - find all two word phrases that appear in more than one row in a dataset
We would like to run a query that returns two word phrases that appear in more than one row. So for e.g. ... a long list of English sentences. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
789
views
1
answer
data structures - Is there a way to make an immutable reference mutable?
I want to solve a leetcode question in Rust (Remove Nth Node From End of List). My solution uses two ... while making the borrow checker happy? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
773
views
1
answer
data binding - Spring usage of typeMismatch messages
I have done some searches on the web and in stackoverflow to see how to handle the following message that I ... numberFormat, false)); } Thanks See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
884
views
1
answer
data binding - How to set a value to display for bound properties in WPF design mode?
My bound contents are showed as empty string in the UI design-mode. I want to display some faked value for those ... know how to. Thank you! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
722
views
1
answer
data structures - How to separate a List by a condition using Java 8 streams
Consider the following code: List<Integer> odd = new ArrayList<Integer>(); List<Integer> even = null; List< ... items based on the conditions. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
779
views
1
answer
data structures - Java: Sorted collection which allows duplicates, is memory efficient and provides fast insert + update
Specifically I need a collection which uses one field A for accessing and a different one (field S) for ... "sorted+segmented array" solution. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
578
views
1
answer
data modeling - Star schema, normalized dimensions, denormalized hierarchy level keys
Given the following star schema tables. fact, two dimensions, two measures. # geog_abb time_date amount value #1: AL ... being use? If not why? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
0
votes
594
views
1
answer
data representation - Representing dynamic typing in C
I'm writing a dynamically-typed language. Currently, my objects are represented in this way: struct Class { ... but you all received upvotes. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
data
Page:
1
2
3
4
5
6
...
11
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] input为 checkbox时样式怎么不生效
[2] android - How get devicePixelRatio from a Controller layer? - Flutter
[3] vue-element-admin实现消息随时提示
[4] 生成PDF html2canvas 截图内容 (偶尔) 不全
[5] 为什么Vue项目运行在IE9中能显示,在IE10/11中白屏?
[6] java - Spring's InitializingBean, CommandLineRunner, ApplicationContextEvent and javax's PostConstruct
[7] 一个程序是如何访问另一个程序的内存地址的?
[8] ssl - NullPointerException at org.bouncycastle.crypto.signers.PSSSigner.generateSignature on Tomcat server. ERR_SSL_PROTOCOL_ERROR on chrome
[9] javascript - Is callback of an async function put in the message queue?
[10] 传统前端项目中如何进行组件化开发?
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
...