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c++ - What breaking changes are introduced in C++11?

I know that at least one of the changes in C++11 that will cause some old code to stop compiling: the ... no longer are. Are there any other breaking changes? Question&Answers:os...

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

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137 views

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How is Perl's @INC constructed? (aka What are all the ways of affecting where Perl modules are searched for?)

What are all the ways of affecting where Perl modules are searched for? or, How is Perl's @INC constructed ... , so this question is intended as one. Question&Answers:os...

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

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git - What's the -practical- difference between a Bare and non-Bare repository?

I've been reading about the bare and non-bare / default repositories in Git. I haven't been able to ... your methods for this kind of work? Suggestions? Question&Answers:os...

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

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html - IE8 issue with Twitter Bootstrap 3

I am creating a site using the new Twitter Bootstrap. The site looks fine and works in all required browsers except IE8. In IE8 it ... <div class="hidden-sm col-sm-4 col-lg-4"> <i...

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

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Is it possible to sandbox JavaScript running in the browser?

I'm wondering if it's possible to sandbox JavaScript running in the browser to prevent access to features that ... are there better ways to solve this problem? Question&Answers:os...

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

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html - display: inline-block extra margin

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

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python - Getting a hidden password input

You know how in Linux when you try some Sudo stuff it tells you to enter the password and, as you ... the password from the user without showing the password. Question&Answers:os...

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

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How do I send a file in Android from a mobile device to server using http?

In android, how do I send a file(data) from a mobile device to server using http. Question&Answers:os...

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

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Offline Speech Recognition In Android (JellyBean)

It looks as though Google has made offline speech recognition available from Google Now for third-party ... SpeechRecognizer API and it works automatically? Question&Answers:os...

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

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How do I compare two DateTime objects in PHP 5.2.8?

Having a look on the PHP documentation, the following two methods of the DateTime object would both seem to solve my ... find it much faster than I did :). Question&Answers:os...

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

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android - TextView Marquee not working

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

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258 views

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sql - MySQL get row position in ORDER BY

With the following MySQL table: +-----------------------------+ + id INT UNSIGNED + + ... wasteful to load a potentially large resultset just for a single row. Question&Answers:os...

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

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.net - Is floating-point math consistent in C#? Can it be?

No, this is not another "Why is (1/3.0)*3 != 1" question. I've been reading about ... libraries that would help keep floating-point calculations consistent? Question&Answers:os...

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

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c# - 'Contains()' workaround using Linq to Entities?

I'm trying to create a query which uses a list of ids in the where clause, using the Silverlight ADO.Net Data ... But got "The method 'Any' is not supported". Question&Answers:os...

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

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asp classic - SQL group_concat function in SQL Server

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

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114 views

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How to make a calculator in PHP?

I want to use PHP to calculate simple algebraic expressions like, 8*(5+1), entered via an <input> tag by a normal user ( ... . '*' . $b, $a*$b, $string); } } Question&Answers:os...

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

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webpack - CORS error even after setting Access-Control-Allow-Origin or other Access-Control-Allow-* headers on client side

I have a Vue application generated with webpack-simple option. I am trying to make a GET request to https://api. ... the same. How to go about solving this? Question&Answers:os...

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

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113 views

1 answer

How do you create a remote Git branch?

I created a local branch which I want to 'push' upstream. There is a similar question here on Stack ... below: https://stackoverflow.com/a/27185855/109305 Question&Answers:os...

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

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192 views

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ios - Generate .pem file used to set up Apple Push Notifications

I tried and tried to generate a .pem file, every time generating certificates from the client's account and then ... Can anyone give a step-by-step procedure? Question&Answers:os...

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

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336 views

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REST HTTP status codes for failed validation or invalid duplicate

I am building an application with a REST-based API and have come to the point where I am specifying ... there a common practice when sending status codes? Question&Answers:os...

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

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1.4k views

1 answer

data structures - JavaScript hashmap equivalent

As made clear in update 3 on this answer, this notation: var hash = {}; hash[X] does ... objects with equivalent string representations overwrite each other. Question&Answers:os...

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

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93 views

1 answer

Python List vs. Array - when to use?

If you are creating a 1d array, you can implement it as a List, or else use the 'array' module in ... memory optimization, or am I missing something obvious? Question&Answers:os...

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

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158 views

1 answer

Simple HTTP server in Java using only Java SE API

Is there a way to create a very basic HTTP server (supporting only GET/POST) in Java using just the Java SE API ... I'm trying to avoid it for those reasons. Question&Answers:os...

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

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525 views

1 answer

how to draw smooth curve through N points using javascript HTML5 canvas?

For a drawing application, I'm saving the mouse movement coordinates to an array then drawing them with lineTo. ... curve with 5 sample points and beyond? Question&Answers:os...

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

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1.4k views

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auto increment - PostgreSQL Autoincrement

I'm switching from MySQL to PostgreSQL and was wondering how I can do autoincrement values. I saw in the PostgreSQL ... syntax errors when using it (in v8.0). Question&Answers:os...

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

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436 views

1 answer

angular - Can't bind to 'formGroup' since it isn't a known property of 'form'

THE SITUATION: Please help! I am trying to make what should be a very simple form in my Angular2 app but no ... am I getting that error? Am I missing something? Question&Answers:os...

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

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437 views

1 answer

javascript - Filter object properties by key in ES6

Let's say I have an object: { item1: { key: 'sdfd', value:'sdfd' }, item2: { key: 'sdfd', value ... this using Es6, so spread operators are available to me. 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

c# - Can I automatically increment the file build version when using Visual Studio?

I was just wondering how I could automatically increment the build (and version?) of my files using ... www.codeproject.com/KB/dotnet/AutoIncrementVersion.aspx) Question&Answers:os...

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

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