I found myself writing:
\vspace 1 \baselineskip
and then when not compiling changing without thinking to:
\vskip 1 \baselineskip
but what is the difference? Perhaps knowing this will make me write the right one from the start in the future...
is incorrect, as
which raises an error. However, also the two calls
are not equivalent. The former will not force end-of-paragraph, if given in LR-mode (using LaTeX parlance; horizontal mode in TeX parlance), adding the stated vertical spacing under the line in which it appears in the typeset document. With
In general it's best to issue
will give some surprises to those who are not accustomed with Plain TeX lingo.
Note for the curious: