Julia's documentation is written in Markdown. A reference of all supported syntax can be found in the manual. All documentation can be found in the Markdown files in doc/src/ and the docstrings in Julia source files in base/ and stdlib/.

This documentation is built using the Documenter.jl package.

All dependencies are automatically installed into a sandboxed package directory in doc/deps/ to avoid interfering with user-installed packages.

To build Julia's documentation run

$ make docs

from the root directory. This will build the HTML documentation and output it to the doc/_build/ folder.

To run the doctests found in the manual run

$ make -C doc doctest=true

from the root directory.

By default, doctests are run using the in-tree Julia executable. This behavior can be changed by setting the JULIA_EXECUTABLE Makefile variable.