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What does $$ (dollar dollar or double dollar) mean in PHP?
...
The inner $ resolves the a variable to a string, and the outer one resolves a variable by that string.
So, consider this example
$inner = "foo";
$outer = "inner";
The variable:
$$outer
would equal the string "foo"
...
Parsing a JSON string in Ruby
I have a string that I want to parse in Ruby:
8 Answers
8
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LINQ to SQL - Left Outer Join with multiple join conditions
...ollows:
public static IEnumerable<Announcementboard> GetSiteContent(string pageName, DateTime date)
{
IEnumerable<Announcementboard> content = null;
IEnumerable<Announcementboard> addMoreContent = null;
try
{
content = from c in DB.Announcementb...
Passing parameters to addTarget:action:forControlEvents
...ass something other than integers? what if I need to pass an object like a string?
– user102008
Apr 6 '11 at 22:55
@us...
Prevent errors from breaking / crashing gulp watch
...ule, you can use the log function of gulp-util to keep you from declare an extra function in your gulpfile:
.on('error', gutil.log)
But I may recommend having a look at the awesome gulp-plumber plugin, which is used to remove the onerror handler of the error event, causing the break of the stre...
Remote debugging with Android emulator
... make each windows system as much of a thin-client as possible without any extra services (such as sshd) or firewall holes.
So here is the senario:
System-A: Windows7 system with android emulator running
System-B: Ubuntu server with SDK installed
The problem as described earlier is that the emu...
How can I get zoom functionality for images?
...
public class TouchImageView extends ImageView {
private static final String TAG = "Touch";
// These matrices will be used to move and zoom image
Matrix matrix = new Matrix();
Matrix savedMatrix = new Matrix();
// We can be in one of these 3 states
static final int NONE = 0...
Regex empty string or email
...ex email validation in SO but I did not find any that will accept an empty string. Is this possible through Regex only? Accepting either empty string or email only? I want to have this on Regex only.
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What is the JavaScript convention for no operation?
...itch it off by reassigning the function to no-op rather than having to add extra code to test some variable each time the function appeared.
– bearvarine
Aug 7 '16 at 5:54
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Error installing mysql2: Failed to build gem native extension
...erate views and controllers)
rails generate scaffold city ID:integer Name:string CountryCode:string District:string Population:integer
Edit the file c:\Sites\world\app\models\city.rb to look like this
class City < ActiveRecord::Base
set_table_name "city"
end
Edit the file c:\Sites\world\c...