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What is the JavaScript equivalent of var_dump or print_r in PHP? [duplicate]
...number":
/* there is absolutely no way in JS to distinguish 2 from 2.0
so 'number' is the best that you can do. The following doesn't work:
var er = /^[0-9]+$/;
if (!isNaN(v) && v % 1 === 0 && er.test(3.0)) {
out = 'int';
...
What's the difference between IEquatable and just overriding Object.Equals()?
...
The main reason is performance. When generics were introduced in .NET 2.0 they were able to add a bunch of neat classes such as List<T>, Dictionary<K,V>, HashSet<T>, etc. These structures make heavy use of GetHashCode and Equals. But for value types this required boxing. IEqua...
How do pointer to pointers work in C?
...
I like this "real world" code example of pointer to pointer usage, in Git 2.0, commit 7b1004b:
Linus once said:
I actually wish more people understood the really core low-level kind of coding. Not big, complex stuff like the lockless name lookup, but simply good use of pointers-to-pointers etc.
F...
Is it necessary to write HEAD, BODY and HTML tags?
...nd the very early versions of HTML didn't define those elements. When HTML 2.0 first did, it was done in a way that the tags would be inferred when missing.
I often find it convenient to omit the tags when prototyping and especially when writing test cases as it helps keep the mark-up focused on th...
JavaFX and OpenJDK
... any self-contained application that uses JavaFX(e.g. JavaFX Scene Builder 2.0):
cp <JRE_WITH_JAVAFX_HOME>/lib/ext/jfxrt.jar <JRE_HOME>/lib/ext/
cp <JRE_WITH_JAVAFX_HOME>/lib/javafx.properties <JRE_HOME>/lib/
cp <JRE_WITH_JAVAFX_HOME>/lib/amd64/libprism_* <JRE_...
In C#, why is String a reference type that behaves like a value type?
...are missing the point, which is that .NET did not have generics until .NET 2.0 in 2005.
String is a reference type instead of a value type because it was of crucial importance for Microsoft to ensure that strings could be stored in the most efficient way in non-generic collections, such as System.C...
Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
...ge -reinstall -ignoreDependencies from the Package Manager Console.
NuGet 2.0 doesn't handle re-targeting your applications very well. In order to change your packages' target frameworks, you must uninstall and reinstall the packages (taking note of the packages you had installed so that you can r...
How can I get zoom functionality for images?
... Multitouch for phones that support it. An regular touch for Android <2.0
– Robert Foss
Jul 8 '11 at 10:04
Nice e...
What are “Groovy” and “Grails” and what kinds of applications are built using them?
...Groovy?
Originally, a dynamic language for the JVM. However, since Groovy 2.0, both static and dynamic typing are supported.
What is Grails?
Grails (previously known as "Groovy on Grails") is a programming framework based on Groovy and inspired by Ruby on Rails (there are differences, but there ar...
Do I encode ampersands in ?
...ncerning URLs in links (<a href).
The first standard is RFC 1866 (HTML 2.0) where in "3.2.1. Data Characters" you can read the characters which need to be escaped when used as the value for an HTML attribute. (Attributes themselves do not allow special characters at all, e.g. <a hr&ef="ht...