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juliabuilt-in

How to find the list of all builtin functions of Julia

How to get the list of all built-in functions of Julia Programming Language?

Once the Julia command line is started, what functions can I use and how to get the list of builtins?

I mean without importing any modules from the standard library (e.g. using LinearAlgebra).

For Python it is documented here: https://docs.python.org/3/library/functions.html

Is there a similar documentation for Julia?

Solution

  • Assuming you want to get it programmatically, first you need the list of loaded modules:

    julia> modules= [mod for mod in getfield.(Ref(Main),names(Main)) 
                 if typeof(mod)==Module && mod != Main]
3-element Vector{Module}:
 Base
 Core
 InteractiveUtils

    Now you having the list of modules you can do:

    julia> vcat(( filter!(f -> typeof(f) <: Function, 
              getfield.(Ref(m), names(m)))  for m in modules)...)
835-element Vector{Any}:
 ! (generic function with 4 methods)
 != (generic function with 4 methods)
 !== (generic function with 1 method)
 rem (generic function with 142 methods)
 & (generic function with 17 methods)
 adjoint (generic function with 48 methods)
 * (generic function with 310 methods)
 + (generic function with 207 methods)
 - (generic function with 211 methods)
 / (generic function with 137 methods)
 // (generic function with 8 methods)
 (::Colon) (generic function with 16 methods)
 < (generic function with 74 methods)
 ⋮
 clipboard (generic function with 3 methods)
 code_llvm (generic function with 8 methods)
 code_native (generic function with 5 methods)
 code_warntype (generic function with 4 methods)
 edit (generic function with 9 methods)
 less (generic function with 5 methods)
 methodswith (generic function with 4 methods)
 peakflops (generic function with 2 methods)
 subtypes (generic function with 2 methods)
 supertypes (generic function with 1 method)
 varinfo (generic function with 4 methods)
 versioninfo (generic function with 2 methods)