Closures/Value capture: Difference between revisions
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<pre>[0, 1, 4, 9, 16, 25, 36, 49, 64, 81]</pre> |
<pre>[0, 1, 4, 9, 16, 25, 36, 49, 64, 81]</pre> |
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=={{header|Emacs Lisp}}== |
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Emacs Lisp now has lexical-let, which allows for the capture of variables. |
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<lang lisp> |
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(require 'cl) |
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(mapcar 'funcall |
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(mapcar (lambda (x) |
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(lexical-let ((x x)) |
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(lambda () (* x x)))) [1 2 3 4 5 6 7 8 9 10])) |
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;; => (1 4 9 16 25 36 49 64 81 100) |
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</lang> |
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=={{header|Erlang}}== |
=={{header|Erlang}}== |
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