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RegEx for match/replacing JavaScript comments (both multiline and inline)

I need to remove all JavaScript comments from a JavaScript source using the JavaScript RegExp object. What I ... found in various JavaScript sources. Thanks. Question&Answers:os...

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

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Determine the size of a C++ array programmatically?

This question was inspired by a similar question: How does delete[] know the size of the operand array? My ... return 1024 (array length * sizeof(int)). Question&Answers:os...

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

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186 views

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xcode - Swift Protocol Extensions overriding

I'm experimenting with Swift protocol extensions and I found this quite confusing behaviour. Could you help me how to get ... BUT I want it to be "Red color" Question&Answers:os...

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

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301 views

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typescript - Angular 2 two way binding using ngModel is not working

Can't bind to 'ngModel' since it isn't a know property of the 'input' element and there are no matching ... .name = 'Jose'; } } bootstrap(DataBinding); Question&Answers:os...

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

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c# - How to store int[] array in application Settings

I'm creating a simple windows Forms application using C# express 2008. I'm an experienced C++ developer, but I am ... I'm not sure exactly how to do this. Question&Answers:os...

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

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455 views

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JavaScript alert not working in Android WebView

In my application I am using WebView and in that I am using JavaScript alert( ) method but its not working, ... page and not javascripts called from that page ? Question&Answers:os...

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

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subset - Subsetting R data frame results in mysterious NA rows

I've been encountering what I think is a bug. It's not a big deal, but I'm curious if anyone ... then executing wide to long reshape before subsetting. Thanks Question&Answers:os...

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

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javascript - What is browser.ignoreSynchronization in protractor?

I have seen it so many times where people suggest to use: browser.ignoreSynchronization=true; // or false But I do not understand why do we need it? Question&Answers:os...

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

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C/C++ int[] vs int* (pointers vs. array notation). What is the difference?

I know that arrays in C are just pointers to sequentially stored data. But what differences imply the difference ... contexts to form a clear general view. Question&Answers:os...

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

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html - Maintain image aspect ratio when changing height

Using the CSS flex box model, how can I force an image to maintain its aspect ratio? JS Fiddle: http://jsfiddle.net/ ... flex; } .slider img { margin: 0 5px; } Question&Answers:os...

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

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227 views

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.net - Can you catch a native exception in C# code?

In C# code can you catch a native exception thrown from deep in some unmanaged library? If so do you need to do ... it or does a standard try...catch get it? Question&Answers:os...

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

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c++11 - const& , & and && specifiers for member functions in C++

Recently I was reading through the API of boost::optional and came across the lines: T const& operator *() const& ; ... it means to declare it const&, & and &&. Question&Answers:os...

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

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concurrency - Is x86 CMPXCHG atomic, if so why does it need LOCK?

The Intel documentation says This instruction can be used with a LOCK prefix to allow the instruction to be ... was to support such lock-free operations.) Question&Answers:os...

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

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email - XAMPP Sendmail using Gmail account

I'm trying to configure Sendmail through XAMPP to send email. In my sendmail.ini I have these settings: # Set ... issue could be here? Thanks in advance! Gaz Question&Answers:os...

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

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How to get the nth element of a python list or a default if not available

I'm looking for an equivalent in python of dictionary.get(key, default) for lists. Is there any one liner idiom to ... , or 5 ifmyList is an empty list. Thanks. Question&Answers:os...

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

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How to select last child element in jQuery?

How to select last child element in jQuery? Just the last child, not its descendants. Question&Answers:os...

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

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python - How to split strings into text and number?

I'd like to split strings like these 'foofo21' 'bar432' 'foobar12345' into ['foofo', '21'] ['bar', '432'] ... know an easy and simple way to do this in python? Question&Answers:os...

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

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How is values() implemented for Java 6 enums?

In Java, you can create an enum as follows: public enum Letter { A, B, C, D, E, F, G; static { for( ... () when it cannot prove that it will not be modified. Question&Answers:os...

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

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iterator - Why does defining __getitem__ on a class make it iterable in python?

Why does defining __getitem__ on a class make it iterable? For instance if I write: class b: def __getitem__(self, k) ... an error returned from "for k in cb:" Question&Answers:os...

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

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195 views

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c++ - Is list::size() really O(n)?

Recently, I noticed some people mentioning that std::list::size() has a linear complexity. According to some sources ... why did the developers choose to do so? Question&Answers:os...

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

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156 views

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Android ListView Text Color

I am trying to set the ListView textColor to black, since I am using a white background. Here is my MailActivity ... the xml and looks like it's not helping. Question&Answers:os...

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

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99 views

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Why is a signaling server needed for WebRTC?

WebRTC is a protocol that defines the transport method for media data between peer-to-peer. Understood. Also ... gives some architecture-level answers. Thanks. Question&Answers:os...

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

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106 views

1 answer

Android AnimationDrawable and knowing when animation ends

I want to do an animation with several image-files, and for this the AnimationDrawable works very well. However ... image animation with a listener on Android? Question&Answers:os...

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

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283 views

1 answer

java - Assert equals between 2 Lists in Junit

How can I make an equality assertion between lists in a JUnit test case? Equality should be between the content ... //numbers should not be equal to numbers3 Question&Answers:os...

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

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714 views

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PHP: How to check if image file exists?

I need to see if a specific image exists on my cdn. I've tried the following and it doesn't work: if (file_exists( ... ". I'm not sure why its not working... Question&Answers:os...

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

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94 views

1 answer

java - How to convert a date String to a Date or Calendar object?

I have a String representation of a date that I need to create a Date or Calendar object from. I've looked through ... be a way, does anyone know of a solution? Question&Answers:os...

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

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793 views

1 answer

python - Make a POST request while redirecting in flask

I am working with flask. I am in a situation where I need to redirect a post request to another url preserving ... want to be able to make POST request too. Question&Answers:os...

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

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1.6k views

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list - Combining (cbind) vectors of different length

I have several vectors of unequal length and I would like to cbind them. I've put the vectors into a list and I have ... 8 NA NA How can I go about doing this? Question&Answers:os...

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

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