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How to properly URL encode a string in PHP?
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Is this rule always the empirical one? I mean, when I need to encode a query string I always use urldecode. Then, what about the URI path (e.g. /a/path with spaces/) and URI fragment (e.g. #fragment). Should I always use rawurldecode for these two?
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What is the most efficient string concatenation method in python?
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One place you know you need to is interview (which is always a great time to brush up your deep understanding). Unfortunately I haven't found ANY modern article about this. (1) Is Java/C# String still that bad in 2017? (2) Ho...
Implementing slicing in __getitem__
... start, stop, and step members of the slice object in order to get the components for the slice.
>>> class C(object):
... def __getitem__(self, val):
... print val
...
>>> c = C()
>>> c[3]
3
>>> c[3:4]
slice(3, 4, None)
>>> c[3:4:-2]
slice(3, 4, -...
WPF Application that only has a tray icon
I am a total WPF newbie and wonder if anyone could give me some pointers how to write an application that starts minimized to tray. The idea is that it periodically fetches an RSS Feed and creates a Toaster-Popup when there are new feeds.
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Confusion: @NotNull vs. @Column(nullable = false) with JPA and Hibernate
...es them into database constraints for you, so you get two for the price of one. @Column(nullable = false) is the JPA way of declaring a column to be not-null. I.e. the former is intended for validation and the latter for indicating database schema details. You're just getting some extra (and welcome...
What is Castle Windsor, and why should I care?
...r).Step()
Imagine you have hundreds of these little classes that only have one responsibility (google SRP).. and you use a few of them in WorkflowStepper:
new WorkflowStepper(emailSender, alertRegistry, databaseConnection).Step()
Imagine not worrying about the details of EmailSender when you are wri...
What's the difference between a Future and a Promise?
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For anyone wondering, @Fulluphigh is referring to this. Looks like it was removed/overhauled in Java 8.
– Cedric Reichenbach
Jan 3 '17 at 21:49
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Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
...ight warn us about a conversion if we pass an integer as a bool parameter. One reason for writing in Clean C is not only that our code is more portable (since it is understood by C++ compilers, not only C compilers), but we can benefit from the diagnostic opinions of C++ compilers.
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How do you loop through currently loaded assemblies?
...mbly);
// Only include assemblies that we wrote ourselves (ignore ones from GAC).
var keysToRemove = _dependentAssemblyList.Values.Where(
o => o.GlobalAssemblyCache == true).ToList();
foreach (var k in keysToRemove)
{
_dependentAssemblyLis...
Cannot use ref or out parameter in lambda expressions
... and in the caller.
These are somewhat incompatible properties and are one of the reasons they are disallowed in lambda expressions.
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