<span class="hljs-meta prompt_">julia&gt;</span><span class="language-julia"> <span class="hljs-keyword">function</span> foo(x) x + <span class="hljs-number">1</span> <span class="hljs-keyword">end</span>
</span>foo (generic function with 1 method)

<span class="hljs-meta prompt_">julia&gt;</span><span class="language-julia"> foo(<span class="hljs-number">42</span>)
</span>43

<span class="hljs-meta prompt_">julia&gt;</span><span class="language-julia"> foo(<span class="hljs-number">42</span>) === <span class="hljs-number">43.</span>
</span>false


Here we match all three lines of code:

<span class="hljs-meta prompt_">julia&gt;</span><span class="language-julia"> <span class="hljs-keyword">function</span> foo(x::<span class="hljs-built_in">Float64</span>)
           <span class="hljs-number">42.</span> - x
       <span class="hljs-keyword">end</span>
</span>foo (generic function with 2 methods)

<span class="hljs-meta prompt_">julia&gt;</span><span class="language-julia"> <span class="hljs-keyword">for</span> x <span class="hljs-keyword">in</span> <span class="hljs-built_in">Any</span>[<span class="hljs-number">1</span>, <span class="hljs-number">2</span>, <span class="hljs-number">3.4</span>]
          println(<span class="hljs-string">&quot;foo(<span class="hljs-variable">$x</span>) = <span class="hljs-subst">$(foo(x)</span>)&quot;</span>)
       <span class="hljs-keyword">end</span>
</span>foo(1) = 2
foo(2) = 3
foo(3.4) = 38.6


... unless it is not properly indented:

<span class="hljs-meta prompt_">julia&gt;</span><span class="language-julia"> <span class="hljs-keyword">function</span> foo(x)
</span>    x + 1
end


Ordinary Julia code does not get highlighted:

Pkg.add(&quot;Combinatorics&quot;)
abstract type Foo end