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What part of Hindley-Milner do you not understand?
...f the [above] must be true in order to guarantee the [below].
: means has type
∈ means is in. (Likewise ∉ means "is not in".)
Γ is usually used to refer to an environment or context; in this case it can be thought of as a set of type annotations, pairing an identifier with its type. Therefore x...
How to show “if” condition on a sequence diagram?
...terms can indeed be represented in sequence diagrams. Here is a link where you can find some nice resources on the subject
http://www.ibm.com/developerworks/rational/library/3101.html
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CodeIgniter - accessing $config variable in view
Pretty often I need to access $config variables in views.
I know I can pass them from controller to load->view() .
But it seems excessive to do it explicitly.
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How can I create a copy of an object in Python?
I would like to create a copy of an object. I want the new object to possess all properties of the old object (values of the fields). But I want to have independent objects. So, if I change values of the fields of the new object, the old object should not be affected by that.
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Print list without brackets in a single row
I have a list in Python
e.g.
12 Answers
12
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What browsers support HTML5 WebSocket API?
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Client side
Hixie-75:
Chrome 4.0 + 5.0
Safari 5.0.0
HyBi-00/Hixie-76:
Chrome 6.0 - 13.0
Safari 5.0.2 + 5.1
iOS 4.2 + iOS 5
Firefox 4.0 - support for WebSockets disabled. To enable it see here.
Opera 11 - with support disabled. To enable it see here.
HyBi-07+:
Chrome 14.0
F...
How to change the output color of echo in Linux
I am trying to print a text in the terminal using echo command.
30 Answers
30
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How efficient is locking an unlocked mutex? What is the cost of a mutex?
...ing a bunch of mutexes (like what pthread gives me or whatever the native system library provides) or a single one for an object.
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How do I pass a unique_ptr argument to a constructor or a function?
I'm new to move semantics in C++11 and I don't know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself:
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Resetting a setTimeout
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You can store a reference to that timeout, and then call clearTimeout on that reference.
// in the example above, assign the result
var timeoutHandle = window.setTimeout(...);
// in your click function, call clearTimeout
wi...