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In page Functional programming:
"JavaScript, Lua,[4] Python and Go[5] had first class functions from their inception.[6] Python had support for "lambda", "map", "reduce", and "filter" in 1994, as well as closures in Python 2.2,[7] though Python 3 relegated "reduce" to the
functoolsstandard library module.[8] First-class functions have been introduced into other mainstream languages such as Perl 5.0 in 1994, PHP 5.3, Visual Basic 9, C# 3.0, C++11, and Kotlin.[9][citation needed]
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