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Cannot push to Heroku because key fingerprint
...acking from ther Heroku documentation or other answers to the question. At least all the info doesn't seem to appear in any one place. It also let's you understand the problem in a way that the accounts tool doesn't.
Heroku identifies you in 2 ways:
The first is in .git/config
[heroku]
accou...
How to paginate with Mongoose in Node.js?
...
To achieve pagination in a scaleable way combine a limit( ) along with at least one filter criterion, a createdOn date suits many purposes.
MyModel.find( { createdOn: { $lte: request.createdOnBefore } } )
.limit( 10 )
.sort( '-createdOn' )
...
Resize HTML5 canvas to fit window
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Rescaling canvas with CSS is troublesome. At least on Chrome and Safari, mouse/touch event positions will not correspond 1:1 with canvas pixel positions, and you'll have to transform the coordinate systems.
– jerseyboy
Dec 1 '11 at...
The relationship could not be changed because one or more of the foreign-key properties is non-nulla
... @Ladislav: No, no, I am glad that you wrote your own answer. Now at least I know that it's not complete nonsense and much too complicated what I did above.
– Slauma
Apr 4 '11 at 20:27
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EF Code First foreign key without navigation property
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With EF Code First Fluent API it is impossible. You always need at least one navigation property to create a foreign key constraint in the database.
If you are using Code First Migrations you have the option to add a new code based migration on the package manager console (add-migration Som...
Can I have multiple primary keys in a single table?
... I think there is a requirement that the PK be minimal, i.e., uses the least number of columns to uniquely identify each record.
– gary
Mar 26 '18 at 22:17
...
jQuery Validate Plugin - How to create a simple custom rule?
...d: "Username is required",
minlength: "Username must be at least 8 characters",
uniqueUserName: "This Username is taken already"
}
}
});
});
share
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How do I directly modify a Google Chrome Extension File? (.CRX)
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FYI, at least on Windows, the \Default directory in the extension location path points to the profile that the extension is installed for. If you using multiple profiles in Chrome \Default is the default profile and \Profile1 is the...
What does the `forall` keyword in Haskell/GHC do?
...Basically, there are 3 different common uses for the forall keyword (or at least so it seems), and each has its own Haskell extension: ScopedTypeVariables, RankNTypes/Rank2Types, ExistentialQuantification.
The code above doesn't get a syntax error with either of those enabled, but only type-checks ...
Python `if x is not None` or `if not x is None`?
...ust did more testing and can confirm that bukzor's comment is correct. (At least, I wasn't able to prove it otherwise.)
This means if x is not None has the exact result as if not x is None. I stand corrected. Thanks bukzor.
However, my answer still stands: Use the conventional if x is not None. :]...