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Make sure that the controller has a parameterless public constructor error
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What's happening is that you're bitten by this problem. Basically, what happened is that you didn't register your controllers explicitly in your container. Unity tries to resolve unregistered concrete types for you, but because it can't resolve it (caused by an error in your configurat...
How to reset db in Django? I get a command 'reset' not found error
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It looks like the 'flush' answer will work for some, but not all cases. I needed not just to flush the values in the database, but to recreate the tables properly. I'm not using migrations yet (early days) so I really needed to drop all the tables.
Two ways I've found to drop all ...
Query for documents where array size is greater than 1
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Great, that was perfect thank you. Although I actually have some documents that don't have a name so had to modify the query to be: db.accommodations.find( { $where: "if (this.name && this.name.length > 1) {return this; } "} );
– emson
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Does Dart support enumerations?
...ase Fruit.apple:
print('it is an apple');
break;
}
// get all the values of the enums
for (List<Fruit> value in Fruit.values) {
print(value);
}
// get the second value
print(Fruit.values[1]);
}
The old approach before 1.8:
class Fruit {
static const APPLE =...
how to stop browser back button using javascript
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There are numerous reasons why disabling the back button will not really work. Your best bet is to warn the user:
window.onbeforeunload = function() { return "Your work will be lost."; };
This page does list a number of ways you could try to disable the back button, but none are guaranteed...
Private and Protected Members : C++
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Public members of a class A are accessible for all and everyone.
Protected members of a class A are not accessible outside of A's code, but is accessible from the code of any class derived from A.
Private members of a class A are not accessible outside of A's code, or f...
How to get datetime in JavaScript?
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Semantically, you're probably looking for the one-liner
new Date().toLocaleString()
which formats the date in the locale of the user.
If you're really looking for a specific way to format dates, I recommend the moment.js library....
JavaScript Nested function
...ion in the same way it would change the scope of a variable. This is especially important for use with closures to reduce total global namespace pollution.
The functions defined within another function won't be accessible outside the function unless they have been attached to an object that is acce...
How do I import an SQL file using the command line in MySQL?
...ful about using the > to redirect the mysqldump output to a file, especially if you want control over the encoding. Instead, you probably want to use the --result-file parameter so that the encoding is not controlled by the shell/OS.
– Bernard Chen
Nov 29 '1...
Find the closest ancestor element that has a specific class
... ((el = el.parentElement) && !((el.matches || el.matchesSelector).call(el,sel)));
return el;
}
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