Anonymous function: Difference between revisions

Revision as of 15:12, 6 February 2008

Revision as of 15:14, 6 February 2008

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===JavaScript===

[[JavaScript]] supports anonymous functions.

<source lang="javascript">

var foo = function(x) {return x*x;}

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===Python===

[[Python (programming language)|Python]] supports anonymous functions through the lambda form. It is, however, expected to be only a single line of code and always returns whatever that line returns. For example:

<source lang="python">

foo = lambda x: x*x

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===PHP===

[[PHP]] doesn't have true anonymous functions because the only way to reference functions is by name. The closest PHP is shown in the following.

<source lang="php">

$foo = create_function("$x", "return $x*$x;");