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Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...Java arrays (which are erroneously covariant):
Object[] arr = new Integer[1];
arr[0] = "Hello, there!";
We just assigned a value of type String to an array of type Integer[]. For reasons which should be obvious, this is bad news. Java's type system actually allows this at compile time. The JVM...
Turning off “created by” stamp when generating files in IntelliJ
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170
In IntelliJ 13 and above it is in the File and Code Templates area of the settings dialog. In ...
Best data type for storing currency values in a MySQL database
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Something like Decimal(19,4) usually works pretty well in most cases. You can adjust the scale and precision to fit the needs of the numbers you need to store. Even in SQL Server, I tend not to use "money" as it's non-standard.
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What is two way binding?
...up two-way binding automagically.
In Backbone, you can easily achieve #1 by binding a view's "render" method to its model's "change" event. To achieve #2, you need to also add a change listener to the input element, and call model.set in the handler.
Here's a Fiddle with two-way binding set up ...
pandas dataframe columns scaling with sklearn
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221
I am not sure if previous versions of pandas prevented this but now the following snippet works ...
What is a PDB file?
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edited Jun 2 '16 at 11:57
Ajay
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answe...
How to structure a express.js application?
...a
(which assumes that we are working from the routes folder and need to go 1 level up and then down to models)
EDIT 4
The express wiki has a list of frameworks built on top of it.
Of those, I think Twitter's matador is structured pretty well. We actually used a very similar approach to how they loa...
git cherry-pick not working
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145
Git is resolving the cherry-pick as a no-op -- all of the changes introduced by that commit ha...
Declaring abstract method in TypeScript
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The name property is marked as protected. This was added in TypeScript 1.3 and is now firmly established.
The makeSound method is marked as abstract, as is the class. You cannot directly instantiate an Animal now, because it is abstract. This is part of TypeScript 1.6, which is now officially l...
Adding git branch on the Bash command prompt
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