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Why do we have map, fmap and liftM?
..., and has spent a lot of time helping people who are learning the language now, it's not at all clear that it even helped in any way. Certainly not enough to offset the useless redundancy (which itself leads to people asking questions like this one); the Functor class is too common to ignore, and be...
Adding up BigDecimals using Streams
... map it to a Stream<BigDecimal> and then reduce it to a BigDecimal.
Now, from an OOP design point I would advice you to also actually use the total() method, which you have already defined, then it even becomes easier:
List<Invoice> invoiceList = new ArrayList<>();
//populate
Big...
How do you use “
...ironment instead.
My primary warning with this: be careful because you're now working with global variables, especially when using <<-. That means that you can end up with situations where a function is using an object value from the environment, when you expected it to be using one that was...
AngularJS ng-click stopPropagation
... console.log('inside the directive')
});
});
}
}
}
Now, you can easily use it in any button, link, div, etc. like so:
<button set-survey-in-edition-mode >Edit survey</button>
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How can I post an array of string to ASP.NET MVC Controller without a form?
...
It's good that I found this answer, now I am able to send array of Guid's and Action receives them to List<Guid>. Thanks
– Tx3
May 17 '11 at 9:36
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What does a tilde do when it precedes an expression?
...l, it's generally too clever for its own good. :)
It's also less relevant now that JavaScript has Array.prototype.includes() and String.prototype.includes(). These return a boolean value. If your target platform(s) support it, you should prefer this for testing for the existence of a value in a str...
How do you know when to use fold-left and when to use fold-right?
...accumulator function x
fold x [A, B, C, D]
thus equals
A x B x C x D
Now you just have to reason about the associativity of your operator (by putting parentheses!).
If you have a left-associative operator, you'll set the parentheses like this
((A x B) x C) x D
Here, you use a left fold. Ex...
Repository access denied. access via a deployment key is read-only
...o set SSH Keys.
I simply deleted the Deployment Key, I don't need any for now. And it worked
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Compiling dynamic HTML strings from database
...ive and adding the scope watch function were the two things I was missing. Now that this is working, guess I'll read up again on directives and $compile, to better understand what's going on under the hood.
– giraffe_sense
Aug 12 '13 at 18:29
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How can I tell PyCharm what type a parameter is expected to be?
...documentation format for methods and their parameters so that PyCharm can know the type. Recent PyCharm version supports most common doc formats.
For example, PyCharm extracts types from @param style comments.
See also reStructuredText and docstring conventions (PEP 257).
Another option is Python...