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PHP: Check if variable exist but also if has a value equal to something

I have (or not) a variable $_GET['myvar'] coming from my query string and I want to check if this variable exists ... -if-variable-exist-but-also-if-has-a-value-equal-to-something...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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133 views

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Literate Haskell (.lhs) and Haddock

At the moment I'm only using Haddock but after seeing some really interesting examples (e.g. this gist) ... ://stackoverflow.com/questions/2707645/literate-haskell-lhs-and-haddock...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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334 views

1 answer

How to refresh Project Navigator content in Xcode?

I'm not able to refresh file list in Project Navigator. There is no refresh button, and I don't think ... .com/questions/12454430/how-to-refresh-project-navigator-content-in-xcode...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Is it a bad practice to use the requireJS module as a singleton?

I plan to use the following pattern to make use of the requireJS based module to act as a singleton. Please notice ... it-a-bad-practice-to-use-the-requirejs-module-as-a-singleton...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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98 views

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node.js - How to properly use "keywords" property in package.json?

Is it good to list as many as possible keywords for a package (hundred?) or this is a bad approach? ... /questions/42933265/how-to-properly-use-keywords-property-in-package-json...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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171 views

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c++ - How is dynamic_cast implemented

Consider this simple hierarchy: class Base { public: virtual ~Base() { } }; class Derived : public Base ... ://stackoverflow.com/questions/18359780/how-is-dynamic-cast-implemented...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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273 views

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Creating a mock in phpunit without mocking any methods?

When I'm unit-testing my php code with PHPUnit, I'm trying to figure out the right way to mock an ... com/questions/9398284/creating-a-mock-in-phpunit-without-mocking-any-methods...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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403 views

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linq - Moq how to replace obsolete expression

I'm using Moq in my code. I wrote an expression like: mockInvoice.VerifySet(x => x. ... stackoverflow.com/questions/8935906/moq-how-to-replace-obsolete-expression...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

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VBA (Excel) Initialize Entire Array without Looping

I am fairly new to VBA, so this may be a simple question but here goes. I would like to ... stackoverflow.com/questions/19336987/vba-excel-initialize-entire-array-without-looping...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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263 views

1 answer

uisegmentedcontrol - iOS SegmentedControl equivalent in Android

question from:https://stackoverflow.com/questions/3952991/ios-segmentedcontrol-equivalent-in-android...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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597 views

1 answer

latex - Pdflatex for windows

Does anyone know how to convert .tex files to .pdf in windows? I tried cygwin but it said the ... question from:https://stackoverflow.com/questions/2914993/pdflatex-for-windows...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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176 views

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functional programming - Why are "pure" functions called "pure"?

(Closed.) This question does not meet Stack Overflow guidelines. It is not currently accepting answers. question ... .com/questions/7750533/why-are-pure-functions-called-pure...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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409 views

1 answer

database - A step-up from TiddlyWiki that is still 100% portable?

TiddlyWiki is a great idea, brilliantly implemented. I'm using it as a portable personal "knowledge manager," and ... 2701039/a-step-up-from-tiddlywiki-that-is-still-100-portable...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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851 views

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python - Why can't I use a starred expression?

My code $ python Python 3.5.2 |Continuum Analytics, Inc.| (default, Jul 2 2016, 17:53:06) [GCC 4. ... ://stackoverflow.com/questions/40676085/why-cant-i-use-a-starred-expression...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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163 views

1 answer

Android - Performing stop of activity that is not resumed

When I push my app to background, and do some other stuff like whatsapp or sms, onResume it works great ... /26375920/android-performing-stop-of-activity-that-is-not-resumed...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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142 views

1 answer

What happens to those who break open source license?

(Closed.) This question is off-topic. It is not currently accepting answers. question from:https://stackoverflow. ... /3149355/what-happens-to-those-who-break-open-source-license...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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197 views

1 answer

asp.net mvc - How can I use Html.Action?

I am trying to understand how to use: @Html.Action("GetOptions", ) What I would like to do is to pass a ... :https://stackoverflow.com/questions/8874775/how-can-i-use-html-action...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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750 views

1 answer

map function - Prolog map procedure that applies predicate to list elements

How do you write a Prolog procedure map(List, PredName, Result) that applies the predicate PredName(Arg, ... 6682987/prolog-map-procedure-that-applies-predicate-to-list-elements...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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234 views

1 answer

Populating cascading dropdown lists in JSP/Servlet

Suppose I am having three dropdownlist controls named dd1, dd2 and dd3. The value of each dropdownlist ... /questions/2263996/populating-cascading-dropdown-lists-in-jsp-servlet...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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220 views

1 answer

Visual Studio Solutions / Multiple project : How to effectively propagate project properties amongst several C++ projects

I am working with a Visual Studio 2005 C++ solution that includes multiple projects (about 30). ... visual-studio-solutions-multiple-project-how-to-effectively-propagate-projec...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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255 views

1 answer

ruby - Why is this string key in a hash converted to a symbol?

Using Ruby 2.3: In example 1, the string key "a" is automatically converted to a symbol, whereas with example 2, it ... /why-is-this-string-key-in-a-hash-converted-to-a-symbol...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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598 views

1 answer

erlang - How to call a method dynamically in Elixir, by specifying both module and method name?

I'd like to know what exactly a method name is in elixir: array = [1,2,3] module_name = :lists ... call-a-method-dynamically-in-elixir-by-specifying-both-module-and-method...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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85 views

1 answer

javascript - Does Chrome have a built-in Call Stack?

From Visual Studio, I'm accustomed to a call stack showing up at any breakpoint. Does Chrome have a call stack ... .com/questions/10761894/does-chrome-have-a-built-in-call-stack...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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154 views

1 answer

java - How do I properly cascade save a one-to-one, bidirectional relationship on primary key in Hibernate 3.6

I have an one-to-one, bidirectional entity relationship with shared keys. When I attempt to save the owner of ... -cascade-save-a-one-to-one-bidirectional-relationship-on-prima...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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199 views

1 answer

c - How to build a DLL from the command line in Windows using MSVC

I've been doing C for about 20 years but I've never built a DLL; I've always prefered to statically link. I use ... /how-to-build-a-dll-from-the-command-line-in-windows-using-msvc...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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124 views

1 answer

javascript - How to scale images on a html5 canvas with better interpolation?

First of all: what am I trying to do? I have an application to view images. It uses the canvas element ... 18761404/how-to-scale-images-on-a-html5-canvas-with-better-interpolation...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

251 views

1 answer

git - Adding to someone else’s pull request on a GitHub project that I do not own

Is it possible for me to add commits to someone else's pull request on a repository where I am not the owner? e.g. ... -else-s-pull-request-on-a-github-project-that-i-do-not-own...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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225 views

1 answer

sqlite - what is the use of SQLiteDatabase.CursorFactory in Android?

I have created a database by extending SQLiteOpenHelper class. And its created also. This is code I am ... 11643294/what-is-the-use-of-sqlitedatabase-cursorfactory-in-android...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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