Nodelike require in Julia (probably you shouldn't do this)

startup.jl

macro require(mod)
    try
        Base.require(__module__, Symbol(mod)) # like require("module")
    catch e
        mod = string(mod)
        include(mod) # like require("./module.js")
    end
end

macro assign(ex)
    if string(ex.head) == "="
        syms = string(ex.args[1])
        for (a, b) in [("{", "("), ("}", ")"), ("(", ""), (")", "")]
            syms = replace(syms, a => b)
        end
        syms = rstrip.(lstrip.(string.(syms)))
        syms = filter(!isempty, syms)
        object = ex.args[2]

        for sym in syms
            @eval $(Symbol(sym)) = try
                getproperty($object, Symbol($(sym))) # structs, modules
            catch e
                try
                    if haskey($object, $sym)
                        get($object, $sym, nothing) # dicts
                    end
                catch e
                    # allow for partial assignments, like { a, b } = { a: 0 }
                end
            end
        end
    end
end

# matrix.jl
A = [0 -1; 1 0]

# main.jl
A = @require("matrix.jl")
@require("Statistics").det(A)
@assign { tr } = @require(Statistics); tr(A) # equivalent to import Statistics: tr

I wanted to be able to do:

@require(Pkg).activate()

instead of

import Pkg; Pkg.activate()

and without polluting the global namespace.