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Unable to Cast from Parent Class to Child Class
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Well, I would hesitate to call this a "downcast".
– Kirk Woll
Dec 24 '12 at 4:43
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What is the optimal length for user password salt? [closed]
Any salt at all will obviously help when salting and hashing a user's password. Are there any best practices for how long the salt should be? I'll be storing the salt in my user table, so I would like the best tradeoff between storage size and security. Is a random 10 character salt enough? Or ...
Why does an SSH remote command get fewer environment variables then when run manually? [closed]
...e -i option. PS1 is
set and $- includes i if bash is interactive, allowing a
shell script or a startup file to test this state.
The following paragraphs describe how bash executes its
startup files. If any of the files exist but cannot be
read, bash rep...
X-UA-Compatible is set to IE=edge, but it still doesn't stop Compatibility Mode
...in the <head> element. No other meta tags, css links and js scripts calls can be placed before it.
<head>
<title>Site Title</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta charset="utf-8">
<script type="text/javascri...
Differences between unique_ptr and shared_ptr [duplicate]
...
Both of these classes are smart pointers, which means that they automatically (in most cases) will deallocate the object that they point at when that object can no longer be referenced. The difference between the two is how many different pointers of each type can refer to a resource.
When using...
What is the HEAD in git?
...ce to the last commit in the currently checked-out branch.
There is a small exception to this, which is the detached HEAD. A detached HEAD is the situation you end up in whenever you check out a commit (or tag) instead of a branch. In this case, you have to imagine this as a temporary branch with...
AngularJS : Initialize service with asynchronous data
...ise;
}
}})
}):
Your controller won't get instantiated before all dependencies are resolved:
app.controller('MainCtrl', function($scope,MyService) {
console.log('Promise is now resolved: '+MyService.doStuff().data)
$scope.data = MyService.doStuff();
});
I've made an example at pl...
Is there YAML syntax for sharing part of a list or map?
... what you want. It uses a special << mapping key to indicate merges, allowing an alias to a mapping (or a sequence of such aliases) to be used as an initializer to merge into a single mapping. Additionally, you can still explicitly override values, or add more that weren't present in the merge...
Why can Java Collections not directly store Primitives types?
...JVM being what it is, doesn't support a "non-object" object. Java generics allow you to pretend there is no wrapper, but you still pay the performance price of boxing. This is IMPORTANT for certain classes of programs.
Boxing is a technical compromise, and I feel it is implementation detail leaking...
Jasmine JavaScript Testing - toBe vs toEqual
...y word for it; see the source code for toBe.
But b and c represent functionally equivalent objects; they both look like
{ foo: { bar: 'baz' } }
Wouldn't it be great if we could say that b and c are "equal" even if they don't represent the same object?
Enter toEqual, which checks "deep equality" (i....