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SQL JOIN - WHERE clause vs. ON clause
After reading it, this is not a duplicate of Explicit vs Implicit SQL Joins .
The answer may be related (or even the same) but the question is different.
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Can two applications listen to the same port?
...lications on the same machine bind to the same port and IP address? Taking it a step further, can one app listen to requests coming from a certain IP and the other to another remote IP?
I know I can have one application that starts off two threads (or forks) to have similar behavior, but can two ap...
window.onload vs
...d the onload event of the body tag? when do I use which and how should it be done correctly?
13 Answers
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When and how should I use a ThreadLocal variable?
... object (I'm looking at you, SimpleDateFormat). Instead, give each thread its own instance of the object.
For example:
public class Foo
{
// SimpleDateFormat is not thread-safe, so give one to each thread
private static final ThreadLocal<SimpleDateFormat> formatter = new ThreadLocal...
How to run a shell script in OS X by double-clicking?
...ipt that has user execution permission on OS X, but when I double click on it, it opens in a text editor. How can I get it to run by double-clicking it?
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Avoid synchronized(this) in Java?
... an
"accidentally" variant)
I'm more worried about accidentally. What it amounts to is that this use of this is part of your class' exposed interface, and should be documented. Sometimes the ability of other code to use your lock is desired. This is true of things like Collections.synchronize...
Ajax, back button and DOM updates
If javascript modifies DOM in page A, user navigates to page B and then hits back button to get back to the page A. All modifications to DOM of page A are lost and user is presented with version that was originally retrieved from the server.
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What does AngularJS do better than jQuery? [closed]
...utorials on how to use Angular, but I am not clear on why or when to use it, or what benefits I may find in comparison to just using jQuery.
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What is the difference between Polymer elements and AngularJS directives?
...n an import.
Nothing "links" <x-foo> to x-foo.html. In your example, it's assumed the Custom Element definition of <x-foo> (e.g. <element name="x-foo">) is defined in x-foo.html. When the browser sees that definition, it's registered as a new element.
On to questions!
What is th...
Repairing Postgresql after upgrading to OSX 10.7 Lion
...n completely borked when trying to connect to the psql server. When I do it from the command line using
15 Answers
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