Non-local variable: Difference between revisions

Revision as of 18:58, 9 November 2011

Revision as of 23:13, 26 November 2011

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== Example ==

In the Python 3 example that follows there is a nested function <code>inner</code> defined in the scope of another function <code>outer</code>. The variable <code>x</code> is local to <code>outer</code>, but non-local to <code>inner</code> (nor is it global):

<source lang=python>

def outer():

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</source>

In the nextHaskell example that follows the variable <code>c</code> is non-local in the anonymous function <code>\x -> x + c</code>:

<source lang=haskell>

outer = let c = 1 in map (\x -> x + c) [1, 2, 3, 4, 5]