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Why is String immutable in Java?
...s discussed in Why String is Stored in String Constant Pool article, every application creates too many string objects and in order to save JVM from first creating lots of string objects and then garbage collecting them. JVM stores all string objects in a separate memory area called String constant ...
C# 'is' operator performance
...t casting is redundant.
If you are going to cast anyway, here is a better approach:
ISpecialType t = obj as ISpecialType;
if (t != null)
{
// use t here
}
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How to trigger Autofill in Google Chrome?
...nabling autocomplete.
Google wrote a pretty nice guide for developing web applications that are friendly for mobile devices. They have a section on how to name the inputs on forms to easily use auto-fill. Eventhough it's written for mobile, this applies for both desktop and mobile!
How to Enable ...
Canary release strategy vs. Blue/Green
...s exactly like the old until someone flips a feature toggle. Breaking your application into small, independently releaseable services is another, since there is less to test and less that can break.
You need to do a canary release if you're not completely certain that the new version will function ...
How do you write a migration to rename an ActiveRecord model and its table in Rails?
...and realize that there are a better set of names for my models in my Rails app. Is there any way to use a migration to rename a model and its corresponding table?
...
Should composer.lock be committed to version control?
I'm a little confused with composer.lock used in an application with a repository.
8 Answers
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Why is IoC / DI not common in Python?
...va IoC / DI is a very common practice which is extensively used in web applications, nearly all available frameworks and Java EE. On the other hand, there are also lots of big Python web applications, but beside of Zope (which I've heard should be really horrible to code) IoC doesn't seem to be ...
When to use ' (or quote) in Lisp?
...e quote comes in. Say you want to plot resource allocations from a Python application, but rather do the plotting in Lisp. Have your Python app do something like this:
print("'(")
while allocating:
if random.random() > 0.5:
print(f"(allocate {random.randint(0, 20)})")
else:
...
Configuring Log4j Loggers Programmatically
...
You can add/remove Appender programmatically to Log4j:
ConsoleAppender console = new ConsoleAppender(); //create appender
//configure the appender
String PATTERN = "%d [%p|%c|%C{1}] %m%n";
console.setLayout(new PatternLayout(PATTERN));...
Targeting both 32bit and 64bit with Visual Studio in same solution/project
...ed assemblies with the same name but their own specific bitness (this also applies to COM interop assemblies)
The MSI package (which, as has already been noted, will need to target either x86 or x64)
Any custom .NET Installer Class-based actions in your MSI package
The assembly reference issue can...