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c# - What's the difference between "groups" and "captures" in .NET regular expressions?

I'm a little fuzzy on what the difference between a "group" and a "capture" are when it comes to .NET's ... 0].Captures include the capture for the letter 'Q'? Question&Answers:os...

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

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360 views

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Android Studio - Android Emulator Wifi Connected with No Internet

I have wasted a whole day trying out different solutions floating around in SO and other place mentioned to enable ... I connect my computer to my home router. Question&Answers:os...

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

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285 views

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database - Is it fine to have foreign key as primary key?

I have two tables: User (username, password) Profile (profileId, gender, dateofbirth, ...) Currently I'm ... the "profileId" field. Which approach is better? Question&Answers:os...

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

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Why does Python use 'magic methods'?

I've been playing around with Python recently, and one thing I'm finding a bit odd is the extensive use of 'magic ... I haven't worked out what they are yet. Question&Answers:os...

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

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html - Remove outline from select box in FF

Is it possible to remove the dotted line surrounding a selected item in a select element? I have tried to add ... please read this. http://www.outlinenone.com/ Question&Answers:os...

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

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Cordova + Angularjs + Device Ready

I am developing a mobile application using Cordova and AngularJS. How do I restrict bootstrapping of ... of AngularJS controllers before device ready. Question&Answers:os...

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

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php - Smart pagination algorithm

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

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delphi - Windows Visual Themes: Gallery of Parts and States?

Microsoft Windows lets programmers draw GUI elements using the look and feel of the current theme using functions like ... the default Windows Vista/7 theme)? Question&Answers:os...

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

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uninstallation - How to uninstall editable packages with pip (installed with -e)

I have installed some packages with -e > pip install -e git+https://github.com/eventray/horus. ... How do I uninstall such a package? Question&Answers:os...

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

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android - Cursor adapter and sqlite example

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

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225 views

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Piping both stdout and stderr in bash?

It seems that newer versions of bash have the &> operator, which (if I understand correctly), redirects both ... it's currently marked as a duplicate of. Question&Answers:os...

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

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javascript - How to generate range of numbers from 0 to n in ES2015 only?

I have always found the range function missing from JavaScript as it is available in python and others? Is there any ... it would be good if that is there) Question&Answers:os...

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

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javascript - Get unique selector of element in Jquery

I want to create something like a recorder whichs tracks all actions of a user. For that, i need to ... answer: Getting a jQuery selector for an element Question&Answers:os...

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

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algorithm - Print two-dimensional array in spiral order

How do I print a 5×5 two-dimensional array in spiral order? Is there any formula so that I can print an array of any size in spiral order? Question&Answers:os...

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

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285 views

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html - CSS table-cell equal width

I have an indeterminate number of table-cell elements inside a table container. <div style="display:table;"> <div ... knowing how many cells you have I think? Question&Answers:os...

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

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javascript - How do I reset the setInterval timer?

How do I reset a setInterval timer back to 0? var myTimer = setInterval(function() { console.log('idle'); }, ... the interval. I want it to restart from 0. Question&Answers:os...

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

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334 views

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iphone - How to Edit Empty Spaces of Left, Right UIBarButtonItem in UINavigationBar [iOS 7]

I was using iOS 6.1 earlier, but now I have moved to iOS 7. Along with other problems, I have observed ... button items in navigation bar?? Thanks in advance. Question&Answers:os...

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

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entity framework - How to pass parameters to the DbContext.Database.ExecuteSqlCommand method?

Let's just suppose I have a valid need for directly executing a sql command in Entity Framework. I am ... query. How do I specify the parameters correctly? Question&Answers:os...

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

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523 views

1 answer

javascript - polyline snap to road using google maps api v3

In google maps api v2 it was easy, var map = new GMap2(document.getElementById("map")); map.setCenter(new ... my points and polyline will be snaped to road. Question&Answers:os...

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

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249 views

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When splitting an empty string in Python, why does split() return an empty list while split(' ') returns ['']?

I am using split(' ') to get lines in one string, and found that ''.split() returns an empty list, [], ... any more convenient way to count lines in a string? Question&Answers:os...

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

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234 views

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database - When I should use one to one relationship?

Sorry for that noob question but is there any real needs to use one-to-one relationship with tables in your ... *. When do you really need this separation? Question&Answers:os...

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

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128 views

1 answer

Python - How to check list monotonicity

What would be an efficient and pythonic way to check list monotonicity? i.e. that it has monotonically increasing or decreasing ... [2, 3, 1] # This is neither Question&Answers:os...

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

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425 views

1 answer

c++ - What are top-level const qualifiers?

What does const at "top level" qualifier mean in C++? And what are other levels? For example: int const *i; int *const i; int const *const i; Question&Answers:os...

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

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573 views

1 answer

localization - Coding in Other (Spoken) Languages

This is something I've always wondered, and I can't find any mention of it anywhere online. When a shop ... or if there are even different localizations at all. Question&Answers:os...

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

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361 views

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Can ffmpeg show a progress bar?

I am converting a .avi file to .flv file using ffmpeg. As it takes a long time to convert a file I would ... get ffmpeg to output the progress to the text file? Question&Answers:os...

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

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279 views

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php - PHPUnit assert that an exception was thrown?

Does anyone know whether there is an assert or something like that which can test whether an exception was thrown in the code being tested? Question&Answers:os...

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

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268 views

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html - How do I add a tool tip to a span element?

In the following code, I want a tool-tip to come up when the user hovers the span, how do I do that? I don't want to use any links. <span> text </span> Question&Answers:os...

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

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169 views

1 answer

In a django model custom save() method, how should you identify a new object?

I want to trigger a special action in the save() method of a Django model object when I'm saving a ... being updated? Any special cases this might overlook? Question&Answers:os...

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

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