OStack Q&A-Knowledge Sharing Community

0 votes

1.0k views

1 answer

compiler construction - What is an application binary interface (ABI)?

I never clearly understood what an ABI is. Please don't point me to a Wikipedia article. If I could understand ... are the major queries that are bugging me. Question&Answers:os...

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

0 votes

252 views

1 answer

What is the difference between Normalize.css and Reset CSS?

I know what CSS Reset is, but recently I heard about this new thing called Normalize.css What is the difference ... just a new buzz word for the CSS Reset? Question&Answers:os...

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

0 votes

104 views

1 answer

Why doesn't Java offer operator overloading?

Coming from C++ to Java, the obvious unanswered question is why didn't Java include operator overloading? Isn't ... Is the reason arbitrary, or lost to time? Question&Answers:os...

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

0 votes

290 views

1 answer

What is the ideal data type to use when storing latitude / longitude in a MySQL database?

Bearing in mind that I'll be performing calculations on lat / long pairs, what datatype is best suited for use with a MySQL database? Question&Answers:os...

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

0 votes

491 views

1 answer

css - How to get div height to auto-adjust to background size?

How do I get a div to automatically adjust to the size of the background I set for it without setting a specific height (or min-height) for it? Question&Answers:os...

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

0 votes

312 views

1 answer

c# - MetadataException: Unable to load the specified metadata resource

All of a sudden I keep getting a MetadataException on instantiating my generated ObjectContext class. The connection ... , from scratch. No luck, whatsoever. Question&Answers:os...

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

0 votes

819 views

1 answer

boolean - In JavaScript, why is "0" equal to false, but when tested by 'if' it is not false by itself?

The following shows that "0" is false in Javascript: >>> "0" == false true >>> false == "0" true So why does the ... ha"? >>> if ("0") console.log("ha") ha Question&Answers:os...

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

0 votes

769 views

1 answer

algorithm - Find a pair of elements from an array whose sum equals a given number

Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X. The ... << ")" << endl; j--; } } } Question&Answers:os...

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

0 votes

232 views

1 answer

javascript - Most efficient way to convert an HTMLCollection to an Array

Is there a more efficient way to convert an HTMLCollection to an Array, other than iterating through the contents ... manually pushing each item into an array? Question&Answers:os...

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

0 votes

233 views

1 answer

iphone - Expand/collapse section in UITableView in iOS

Could somebody tell me the way to perform UITableView expandable/collapsible animations in sections of UITableView as below? or Question&Answers:os...

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

0 votes

419 views

1 answer

angularjs - ng-repeat :filter by single field

I have an array of products that I'm repeating over using ng-repeat and am using <div ng-repeat="product ... colour field of my array rather than every field? Question&Answers:os...

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

0 votes

218 views

1 answer

.net - Choosing between MEF and MAF (System.AddIn)

The Managed Extensibility Framework (MEF) and Managed AddIn Framework (MAF, aka System.AddIn) seem to accomplish ... would you choose to use both together? Question&Answers:os...

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

0 votes

125 views

1 answer

Using try vs if in python

Is there a rationale to decide which one of try or if constructs to use, when testing variable to ... discussion: Checking for member existence in Python Question&Answers:os...

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

0 votes

288 views

1 answer

node.js - NPM Install Error:Unexpected end of JSON input while parsing near '...nt-webpack-plugin":"0'

When creating a new Angular 5 project: node version: 8.9.2 npm version: 5.5.1 My Command is: npm ... -12-06T13_10_10_729Z-debug.log The error log is here Question&Answers:os...

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

0 votes

112 views

1 answer

html - How to retrieve checkboxes values in jQuery

How to use jQuery to get the checked checkboxes values, and put it into a textarea immediately? Just like this ... doesn't work. Is there any good solution? Question&Answers:os...

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

0 votes

85 views

1 answer

python - How to check if all elements of a list match a condition?

I have a list consisting of like 20000 lists. I use each list's 3rd element as a flag. I want to do ... consumes lots of time! Do you have any suggestions? Question&Answers:os...

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

0 votes

346 views

1 answer

datetime - Python strptime() and timezones?

I have a CSV dumpfile from a Blackberry IPD backup, created using IPDDump. The date/time strings in here look ... get strptime() to play nicely with timezones? Question&Answers:os...

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

0 votes

178 views

1 answer

PHP - Check if two arrays are equal

I'd like to check if two arrays are equal. I mean: same size, same index, same values. How can I do that? ... sidesOriginal'] !== $sideext)) { echo "enter"; } Question&Answers:os...

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

0 votes

203 views

1 answer

Why are local variables not initialized in Java?

Was there any reason why the designers of Java felt that local variables should not be given a default value? ... it must be within a try. Very frustrating. Question&Answers:os...

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

0 votes

281 views

1 answer

java - Can you use @Autowired with static fields?

Is there some way to use @Autowired with static fields. If not, are there some other ways to do this? Question&Answers:os...

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

0 votes

365 views

1 answer

c# - A potentially dangerous Request.Path value was detected from the client (*)

I am receiving the rather self explanatory error: A potentially dangerous Request.Path value was detected from the ... routing to produce the nice URL above. Question&Answers:os...

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

0 votes

59 views

1 answer

Is it possible to use JSF+Facelets with HTML 4/5?

Facelets relies on XML namespaces to work with XHTML. How are HTML 4, and as far as I know, HTML 5 do not ... HTML 4/5 documents using Facelets? If so, how? Question&Answers:os...

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

0 votes

230 views

1 answer

python - How to add group labels for bar charts in matplotlib?

I want to plot data of the following form using matplotlib's bar plot feature: data = {'Room A': {'Shelf 1' ... . Is there any way to do this with matplotlib? Question&Answers:os...

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

0 votes

344 views

1 answer

destructor - C++: Life span of temporary arguments?

When creating a new instance of a MyClass as an argument to a function like so: class MyClass { MyClass(int ... next statement after the call to myFunction() ? Question&Answers:os...

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

0 votes

282 views

1 answer

How to edit a JavaScript alert box title?

I'm generating a JavaScript alert with following code in C# .NET page: Response.Write("<script language=JavaScript> ... ". Is it possible to modify the title? Question&Answers:os...

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

0 votes

94 views

1 answer

php - How to use PDO connection in other classes?

I think I've a problem in understanding how OOP works. I already changed the code that it works, but it isn't the ... know why there have to be a second conn-> Question&Answers:os...

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

0 votes

228 views

1 answer

git - How to reset all files from working directory but not from staging area?

Is there a way to reset all files from the working directory but not those from staging area? I know ... working directory, leaving the staging area untouched? Question&Answers:os...

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

0 votes

159 views

1 answer

c - Can we change the value of an object defined with const through pointers?

#include <stdio.h> int main() { const int a = 12; int *p; p = &a; *p = 70; } Will it work? 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