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What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
...
The quick and dirty first pass solution is always a great one to start with, as a comparison if nothing else.
Greedy placement from large to small.
Put the largest rectangle remaining into your packed area. If it can't fit anywhere, place it in a place that extends the pack region as lit...
RSS Feeds in ASP.NET MVC
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Hanselman has a similar solution (video: starting around 41m) where he inherits from FileResult. By doing so, you can have your class's constructor call base("application/rss+xml") and avoid steps 3 and 4. He does override ExecuteResult, but it isn't vital. He also...
How do I use $scope.$watch and $scope.$apply in AngularJS?
...o wait on jQuery.
To tackle this, $apply has been introduced. It lets you start the digestion cycle explicitly. However, you should only use this to migrate some data to AngularJS (integration with other frameworks), but never use this method combined with regular AngularJS code, as AngularJS will ...
What is the best way to prevent session hijacking?
...VER['HTTP_X_FORWARDED_FOR'];
$agent = $_SERVER['HTTP_USER_AGENT'];
session_start();
// Do this each time the user successfully logs in.
$_SESSION['ident'] = hash("sha256", $aip . $bip . $agent);
// Do this every time the client makes a request to the server, after authenticating
$ident = hash("sha...
Understanding Python super() with __init__() methods [duplicate]
... the Method Resolution Order.
check_next = mro.index(ChildB) + 1 # Start looking after *this* class.
while check_next < len(mro):
next_class = mro[check_next]
if '__init__' in next_class.__dict__:
next_class.__init__(self)
br...
What is a callback function?
... a certain point in the future.
Typically it is used when a task is being started that will finish asynchronously (ie will finish some time after the calling function has returned).
For example, a function to request a webpage might require its caller to provide a callback function that will be ca...
Is there a way to instantiate objects from a string holding their class name?
...ject to port old MacApp to C++ and X11. In the effort of it Eric Gamma etc started to think about Design Patterns
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How do I set a variable to the output of a command in Bash?
...implemented for this
myPi=$(bc -l <<<'4*a(1)')
Nested sample:
SysStarted=$(date -d "$(ps ho lstart 1)" +%s)
echo $SysStarted
1480656334
bash features
There is an elegent way:
users=()
while IFS=: read -u $list user pass uid gid name home bin ;do
((uid>=500)) &&
pri...
Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...u will be better off using Paypal or another type of service.
The process starts by getting a merchant account setup and tied to your bank account. You may want to check with your bank, because a lot of major banks provide merchant services. You may be able to get deals, because you are already a...
How to check if a table exists in a given schema
...mpany specific tables in company schema.
company schema names always start with 'company' and end with the company number.
So there may be schemas like:
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