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$on and $broadcast in angular
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If you want to $broadcast use the $rootScope:
$scope.startScanner = function() {
$rootScope.$broadcast('scanner-started');
}
And then to receive, use the $scope of your controller:
$scope.$on('scanner-started', function(event, args) {
// do what you want to do
});
If you want y...
MySQL CONCAT returns NULL if any field contain NULL
...FNULL() instead of ISNULL()
– Jeffrey Nicholson Carré
Jan 16 '15 at 17:33
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Plot a legend outside of the plotting area in base graphics?
...pd=TRUE as an argument of the legend() function.
– Stéphane Laurent
Jul 26 '12 at 11:27
1
Someti...
Save icon: Still a floppy disk? [closed]
..., at least thoses in North America did.
– Mathieu Pagé
Jun 22 '09 at 16:52
7
Whilst you are corr...
Should I impose a maximum length on passwords?
... you can't input more than, say, 8 characters.
– André Chalella
Sep 19 '08 at 2:40
11
well at le...
Super-simple example of C# observer/observable with delegates
...appened?.Invoke(this, EventArgs.Empty);
– Junior Mayhé
Jun 28 '17 at 20:03
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How dangerous is it to access an array out of bounds?
...inistrative) access, for example. Even with ordinary user privileges, a malfunctioning program can consume excessive resources (CPU, memory, disk), possibly bringing down the entire system. A lot of malware (viruses, etc.) exploits buffer overruns to gain unauthorized access to the system.
(One his...
How to remove convexity defects in a Sudoku square?
I was doing a fun project: Solving a Sudoku from an input image using OpenCV (as in Google goggles etc). And I have completed the task, but at the end I found a little problem for which I came here.
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SET versus SELECT when assigning variables?
...(so you'd likely never know why something was going wrong elsewhere - have fun troubleshooting that one)
When assigning from a query if there is no value returned then SET will assign NULL, where SELECT will not make the assignment at all (so the variable will not be changed from its previous valu...
What is Hindley-Milner?
...anguages). The advantages of Hindley-Milner are
It supports polymorphic functions; for example, a function that can give you the length of the list independent of the type of the elements, or a function does a binary-tree lookup independent of the type of keys stored in the tree.
Sometimes a func...