OStack Q&A-Knowledge Sharing Community

0 votes

261 views

1 answer

html - Alternative to iFrames with HTML5

I would like to know if there is an alternative to iFrames with HTML5. I mean by that, be able to inject ... HTML inside of a webpage without using an iFrame. Question&Answers:os...

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

0 votes

292 views

1 answer

oop - What is the difference between dynamic and static polymorphism in Java?

Can anyone provide a simple example that explains the difference between Dynamic and Static polymorphism in Java? Question&Answers:os...

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

0 votes

141 views

1 answer

What are the differences between json and simplejson Python modules?

I have seen many projects using simplejson module instead of json module from the Standard Library. Also, there are ... of the one in the Standard Library? Question&Answers:os...

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

0 votes

551 views

1 answer

python - json.dumps vs flask.jsonify

I am not sure I understand the purpose of the flask.jsonify method. I try to make a JSON string from this: ... what json.dumps returns. What am I doing wrong? Question&Answers:os...

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

0 votes

179 views

1 answer

javascript - Smooth scroll to div id jQuery

I've been trying to get a scroll to div id jquery code to work correctly. Based on another stack overflow question i ... #myDiv'), 1000); }); With no progress. Question&Answers:os...

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

0 votes

99 views

1 answer

How to change the text of a button in jQuery?

How do you change the text value of a button in jQuery? Currently, my button has 'Add' as its text value, and ... : $("#btnAddProfile").attr('value', 'Save'); Question&Answers:os...

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

0 votes

397 views

1 answer

How to ignore files/directories in TFS for avoiding them to go to central source repository?

Is it possible to set up files/folders to ignore on a per-project basis in TFS source control? For example, ... again I want to prevent this from happening. Question&Answers:os...

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

0 votes

149 views

1 answer

mysql - Get records with highest/smallest <whatever> per group

How to do that? Former title of this question was "using rank (@Rank := @Rank + 1) in complex query ... table.GroupId ) order by OrderField Thanks in advance! Question&Answers:os...

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

0 votes

350 views

1 answer

puzzle - What is the simplest SQL Query to find the second largest value?

What is the simplest SQL query to find the second largest integer value in a specific column? There are maybe duplicate values in the column. Question&Answers:os...

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

0 votes

300 views

1 answer

Converting numpy dtypes to native python types

If I have a numpy dtype, how do I automatically convert it to its closest python data type? For example, ... . I think this already happens somewhere in numpy. Question&Answers:os...

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

0 votes

704 views

1 answer

process - Check to see if python script is running

I have a python daemon running as a part of my web app/ How can I quickly check (using python) if my daemon ... i check (using python) if my script is running? Question&Answers:os...

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

0 votes

947 views

1 answer

sh - "echo -n" prints "-n"

I have a problem with echo in my script: echo -n "Some string..." prints -n Some string... and moves ... it's working correcly without newline: Some string... Question&Answers:os...

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

0 votes

425 views

1 answer

What does ==$0 (double equals dollar zero) mean in Chrome Developer Tools?

In Google Chrome's developer tools, when I select an element, I see ==$0 next to the selected element. What does that mean? Question&Answers:os...

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

0 votes

182 views

1 answer

javascript - How can I let a table's body scroll but keep its head fixed in place?

I am writing a page where I need an HTML table to maintain a set size. I need the headers at the top of the ... the web has some drawback. How can I solve this? Question&Answers:os...

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

0 votes

197 views

1 answer

memory - How are integers internally represented at a bit level in Java?

I am trying to understand how Java stores integer internally. I know all java primitive integers are signed, ( ... numbers are stored as two's complement. Question&Answers:os...

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

0 votes

291 views

1 answer

Java List.contains(Object with field value equal to x)

I want to check whether a List contains an object that has a field with a certain value. Now, I could ... wondered if there were any simple(ish) alternatives. Question&Answers:os...

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

0 votes

402 views

1 answer

python - multiple axis in matplotlib with different scales

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

269 views

1 answer

Android activity over default lock screen

How can I display an Activity or Dialog to be visible over the lock screen? I have already tried displaying ... It work perfectly unless you use HOME button. Question&Answers:os...

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

0 votes

332 views

1 answer

wpf - What is so special about Generic.xaml?

I've been trying to figure out how to organize my ResourceDictionary files for reuse and sharing with other members of my ... .e., if I have only one theme)? Question&Answers:os...

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

0 votes

251 views

1 answer

c# - How to compare 2 files fast using .NET?

Typical approaches recommend reading the binary via FileStream and comparing it byte-by-byte. Would a checksum ... can generate a checksum for a file? Question&Answers:os...

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

0 votes

105 views

1 answer

c# - What is the use of ObservableCollection in .net?

What is the use of ObservableCollection in .net? Question&Answers:os...

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

0 votes

151 views

1 answer

javascript - Changing an element's ID with jQuery

I need to change an element's ID using jQuery. Apparently these don't work: jQuery(this).prev("li").attr("id")= ... 't use classes in this case, I must use IDs. Question&Answers:os...

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

0 votes

243 views

1 answer

android - Getting View's coordinates relative to the root layout

Can I get a View's x and y position relative to the root layout of my Activity in Android? Question&Answers:os...

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

0 votes

274 views

1 answer

php - Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted

I've encountered the dreaded error-message, possibly through-painstaking effort, PHP has run out of memory: Allowed ... can help me find and fix the problem? Question&Answers:os...

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

0 votes

779 views

1 answer

types - Convert a byte array to integer in Java and vice versa

I want to store some data into byte arrays in Java. Basically just numbers which can take up to 2 ... understand so I would appreciate a basic explanation. Question&Answers:os...

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

0 votes

225 views

1 answer

Java 7 (JDK 7) garbage collection and documentation on G1

Java 7 has been out for a while now, but I cannot find any good resources on the configuration of the ... good documentation on garbage collection in Java 7? Question&Answers:os...

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

0 votes

203 views

1 answer

Should I check in folder "node_modules" to Git when creating a Node.js app on Heroku?

I followed the basic getting started instructions for Node.js on Heroku here: https://devcenter.heroku.com/categories/ ... in a bad state on the Heroku side. Question&Answers:os...

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

0 votes

97 views

1 answer

JSON and XML comparison

Closed. This question is opinion-based. It is not currently accepting answers. 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