OStack Q&A-Knowledge Sharing Community

0 votes

1.3k views

1 answer

escaping - Best way to escape and unescape strings in Ruby?

Does Ruby have any built-in method for escaping and unescaping strings? In the past, I've used regular expressions; however ... {s}"} end Is there a better way? Question&Answers:os...

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

0 votes

345 views

1 answer

javascript - error : Permission denied to access property 'document'

How can I fix this message in Firefox? I am using an Iframe which has an anchor tag? I would like to get ... //.getElementsByClassName('a'); anchor.onclick.... Question&Answers:os...

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

0 votes

1.0k views

1 answer

python - Cannot use geometry manager pack inside

So I'm making an rss reader using the tkinter library, and in one of my methods I create a text widget. It ... ", expand=False) Any ideas how to fix this? Question&Answers:os...

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

0 votes

189 views

1 answer

asp.net mvc - Posting JSON data via jQuery to ASP .NET MVC 4 controller action

I'm having trouble trying to pass a complex JSON object to an MVC 4 controller action. As the JSON ... passed is a stringified complex object? Thanks, Notre Question&Answers:os...

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

0 votes

162 views

1 answer

How can I get the Windows system time with millisecond resolution?

How can I get the Windows system time with millisecond resolution? If the above is not possible, then how ... with millisecond resolution. Thank you in advance. Question&Answers:os...

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

0 votes

144 views

1 answer

c - Sending file descriptor by Linux socket

I am trying to send some file descriptor by linux socket, but it does not work. What am I doing wrong? How is one ... (0.5); int fd = odbierz(sock); } } Question&Answers:os...

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

0 votes

156 views

1 answer

Reading DOC file in php

I'm trying to read .doc .docx file in php. All is working fine. But at last line I'm getting awful characters. ... ; } $userDoc = "k.doc"; Here is screenshot. Question&Answers:os...

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

0 votes

477 views

1 answer

r - ggplot2, facet_grid, free scales?

In the following example, how do I get the y-axis limits to scale according to the data in each panel? mt <- ... ) mt + facet_grid(. ~ cyl, scales="free_y") Question&Answers:os...

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

0 votes

276 views

1 answer

css - How to have css3 animation to loop forever

I want to have the whole set of animation to play forever. When the last photo fades off, I want the first one to appear ... div> </div> </body> </head> </html> Question&Answers:os...

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

0 votes

216 views

1 answer

.net 3.5 - LINQ: Dot Notation vs Query Expression

I am beginning to use LINQ in general (so far toXML and toSQL). I've seen that sometimes there are two ... , but besides that, are there any other advantages? Question&Answers:os...

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

0 votes

352 views

1 answer

python - ImportError: cannot import name _imaging

I installed Pillow, and after I want to do: from PIL import Image I get the following error: Traceback (most ... Image Do you know what the problem might be? Question&Answers:os...

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

0 votes

219 views

1 answer

c# - SQL WHERE clause matching values with trailing spaces

In SQL Server 2008 I have a table called Zone with a column ZoneReference varchar(50) not null as the ... some sort of whitespace character. Can anyone help? Question&Answers:os...

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

0 votes

138 views

1 answer

sql - Constraint for only one record marked as default

How could I set a constraint on a table so that only one of the records has its isDefault bit field set to 1 ... default per set of rows, specified by a FormID. Question&Answers:os...

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

0 votes

150 views

1 answer

c++ - Why do we need to mark functions as constexpr?

C++11 allows functions declared with the constexpr specifier to be used in constant expressions such as template ... effect at all on any valid program? Question&Answers:os...

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

0 votes

514 views

1 answer

mysql - Filter by COUNT(*)?

Is it possible to group results and then filter by how many rows are in the group? Something like this: SELECT * FROM mytable WHERE COUNT(*) > 1 GROUP BY name Question&Answers:os...

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

0 votes

156 views

1 answer

PHP Accessing Parent Class Variable

class A { private $aa; protected $bb = 'parent bb'; function __construct($arg) { //do something.. } private ... in child? expected result will echo 'parent bb' Question&Answers:os...

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

0 votes

467 views

1 answer

python - positional argument follows keyword argument

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

245 views

1 answer

r - Get indexes of a vector of numbers in another vector

Let's suppose we have the following vector: v <- c(2,2,3,5,8,0,32,1,3,12,5,2,3,5,8,33,1) Given ... it doesn't give me what I am looking for. Thanks beforehand. Question&Answers:os...

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

0 votes

207 views

1 answer

regex - Extracting unique numbers from string in R

I have a list of strings which contain random characters such as: list=list() list[1] = "djud7+ ... related subject: Extracting numbers from vectors of strings) Question&Answers:os...

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

0 votes

266 views

1 answer

c++ - Scope of variables in if statements

I have a class that has no default constructor or assignment operator so it is declared and initialized within an ... and create the appropriate type with new. Question&Answers:os...

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

0 votes

256 views

1 answer

java - How to make Lombok and AspectJ work together?

I just finished posting this issue on SO about Lombok not generating my getters/setters. It turns out ... exclusive? Do both technologies work together? Question&Answers:os...

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

0 votes

175 views

1 answer

Checking internet connection on android

I have the following code for checking internet connection wifi/EDGE/GPRS/3G on my application. the code is public ... until unless I turn off and on device. Question&Answers:os...

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

0 votes

223 views

1 answer

javascript - How to call ajax in Wordpress

My ajax call output is always showing 0 as output don't know why In functions.php I have this code function get_data ... Even If I output $abc still it shows 0. Question&Answers:os...

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

0 votes

176 views

1 answer

javascript - Selecting Part of String inside an Input Box with jQuery

I am trying to figure out how to highlight just some part of text inside an input box using jQuery. It's ... just one word or couple of letters? Thanks! Question&Answers:os...

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

0 votes

131 views

1 answer

Connecting 2 Emulator instances In Android

I want to create a Server and a Client in 2 Emulator to write and read data. I write code for Server : ... not connecting....Please help me. I appreciate it. Question&Answers:os...

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

0 votes

268 views

1 answer

jquery - Javascript Array Concat not working. Why?

So I've created this jqueryui widget. Its creates a div that I can stream errors into. The widget code looks like ... dumb in this widget? It's my first one. Question&Answers:os...

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

0 votes

856 views

1 answer

handling dbnull data in vb.net

I want to generate some formatted output of data retrieved from an MS-Access database and stored in a DataTable ... the data is dbNull as in this question? Question&Answers:os...

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

0 votes

353 views

1 answer

python - How do I filter a pandas DataFrame based on value counts?

I'm working in Python with a pandas DataFrame of video games, each with a genre. I'm trying to remove any ... of functional programming is rusty at best). Help? 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