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Why are side-effects modeled as monads in Haskell?
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Suppose a function has side effects. If we take all the effects it produces as the input and output parameters, then the function is pure to the outside world.
So, for an impure function
f' :: Int -> Int
we add the RealWorld to the consideration
f :: Int -> RealWorld -> (Int, Re...
Convert boolean result into number/integer
...tring, number, etcetera.) The unary answer is clever indeed, but if I pass it a string it returns NaN. So if you want L33T and guarantee the input, go urary, otherwise methinks the ternary + truthy test is best.
– gdibble
Jun 13 '17 at 18:31
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How to set UITextField height?
I am using a UITextField . I want to increase its height but I have not found any property to do this. How can I achieve this?
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Use PHP composer to clone git repo
I'm trying to use composer to automatically clone a git repository from github that isn't in packagist but it's not working and I can't figure out what am I doing wrong.
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c# open a new form then close the current form?
...es not work. When calling this.Close(), current form is disposed together with form2. Therefore you need to hide it and set form2.Closed event to call this.Close().
private void OnButton1Click(object sender, EventArgs e)
{
this.Hide();
var form2 = new Form2();
form2.Closed += (s, args) ...
Getting a slice of keys from a map
...ge mymap {
keys = append(keys, k)
}
}
To be efficient in Go, it's important to minimize memory allocations.
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Upgrade python in a virtualenv
...l need to see your virtualenv version).
If your virtualenv is installed with the same python version of the old one and upgrading your virtualenv package is not an option, you may want to read this in order to install a virtualenv with the python version you want.
EDIT
I've tested this approach ...
Detect Safari browser
How to detect Safari browser using JavaScript? I have tried code below and it detects not only Safari but also Chrome browser.
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Why doesn't Java support unsigned ints?
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This is from an interview with Gosling and others, about simplicity:
Gosling: For me as a language designer, which I don't really count myself as these days, what "simple" really ended up meaning was could I expect J. Random Developer to hold the s...
Uncaught SyntaxError: Unexpected token :
... out code to determine where the bad code is yields nothing, I am thinking it may be a problem with the JSON being returned. Checking in the console I see the JSON returned is this:
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