add documentation for Function type (#21649)

(cherry picked from commit 0be9996)
JuliaLang · May 4, 2017 · 8774627 · 8774627
1 parent e6f48c3
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diff --git a/base/docs/basedocs.jl b/base/docs/basedocs.jl
@@ -692,4 +692,22 @@ run(pipeline(`cat test.txt`, DevNull))
 """
 DevNull
 
+"""
+    Function
+
+Abstract type of all functions.
+
+```jldoctest
+julia> isa(+, Function)
+true
+
+julia> typeof(sin)
+Base.#sin
+
+julia> ans <: Function
+true
+```
+"""
+Function
+
 end
diff --git a/doc/stdlib/base.rst b/doc/stdlib/base.rst
@@ -662,6 +662,23 @@ Types
 Generic Functions
 -----------------
 
+.. data:: Function
+
+   .. Docstring generated from Julia source
+
+   Abstract type of all functions.
+
+   .. doctest::
+
+       julia> isa(+, Function)
+       true
+
+       julia> typeof(sin)
+       Base.#sin
+
+       julia> ans <: Function
+       true
+
 .. function:: method_exists(f, Tuple type) -> Bool
 
    .. Docstring generated from Julia source