Just JS {% highlight js %} function myFunction() { return true; } {% endhighlight %} Just JS multiline {% highlight js %} let multilineString = ` this is the first line this is the middle line this is the last line `; {% endhighlight %} JS + Linehighlight {% highlight js 1,3 %} let multilineString = ` this is the first line this is the middle line this is the last line `; {% endhighlight %} Swift + show lineNumbers {% highlight swift lineNumbers %} let multilineString = ` this is the first line this is the middle line this is the last line `; {% endhighlight %} Swift + show lineNumbers + highlight 1 & 3 {% highlight swift lineNumbers 1,3 %} let multilineString = ` this is the first line this is the middle line this is the last line `; {% endhighlight %} Swift + show lineNumbers + highlight 1 & 3 {% highlight swift lineNumbers 2:3 table %} let multilineString = ` this is the first line this is the middle line this is the last line `; {% endhighlight %}