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Why should Java ThreadLocal variables be static
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Either make it static or if you are trying to avoid any static fields in your class - make the class itself a singleton and then you can safely use the an instance level ThreadLocal as long as you have that singleton available globally.
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What does “use strict” do in JavaScript, and what is the reasoning behind it?
...+ b;} This works because arguments[0] is bound to a and so on. )
arguments.callee is not supported
[Ref: Strict mode, Mozilla Developer Network]
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Can you build dynamic libraries for iOS and load them at runtime?
...tore, so I don't care about Apple's restrictions for AppStore. Is it technically possible to create a dynamic library for iOS app?
– Aliaksei
Sep 9 '11 at 21:12
3
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What is an optional value in Swift?
...t way to unwrap an optional is to add a ! after the optional name. This is called "force unwrapping". It returns the value inside the optional (as the original type) but if the optional is nil, it causes a runtime crash. Before unwrapping you should be sure there's a value.
var name: String? = "Bob"...
'parent.relativePath' points at my com.mycompany:MyProject instead of org.apache:apache - Why?
What is true is that Solr project directory is inside MyProject parent directory (but there's no module or any maven relationship between the 2, just FS convenience). Do I have to place it out?
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How to create your own library for Android development to be used in every program you write?
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You have to create Android Library Project.
Create android project in Eclipse, enter Project Properties -> Android and check isLibrary property. Now you can add this library to your Android Application project by adding it to list on the same pro...
Direct casting vs 'as' operator?
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RE: Anheledir Actually i would be null after the first call. You have to use an explicit conversion function to get the value of a string.
– Guvante
Sep 25 '08 at 10:47
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Passing a String by Reference in Java?
...n scenario, it should not be a problem. It doesn't matter if the method is called by different threads, receiving different StringBuilder.
– Ravi Wallau
Aug 13 '09 at 18:37
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How many String objects will be created when using a plus sign?
... might get even fewer string objects than you expect, since multiple identically-defined constants or literals will actually be the same object! This is illustrated by the following:
public class Program
{
private const String one = "1";
private const String two = "2";
private const Str...
Retaining file permissions with Git
...s to my repository.
.git/hooks/pre-commit:
#!/bin/bash
#
# A hook script called by "git commit" with no arguments. The hook should
# exit with non-zero status after issuing an appropriate message if it wants
# to stop the commit.
SELF_DIR=`git rev-parse --show-toplevel`
DATABASE=$SELF_DIR/.permis...