Clarification on old Comment

Question

This post has a very nice answer from Martin Scharrer

Fancy Chapter Headings

The OP responds saying that he added a ~ after chapter and number for a nicer layout. What does he mean?

Answer 1

Martin's answer at Fancy Chapter Headings produced the following output (zoomed):

The comment by the OP discussed taking Martin's definition of \titleformat:

\titleformat{\chapter}[display]
  {\normalfont\Large\raggedleft}
  {\MakeUppercase{\chaptertitlename}%
    \rlap{ \resizebox{!}{1.5cm}{\thechapter} \rule{5cm}{1.5cm}}}
  {10pt}{\Huge}

and adding two spaces ~, one after \chaptertitlename and the other after \thechapter as follows:

\titleformat{\chapter}[display]
  {\normalfont\Large\raggedleft}
  {\MakeUppercase{\chaptertitlename~}%
    \rlap{ \resizebox{!}{1.5cm}{\thechapter~} \rule{5cm}{1.5cm}}}
  {10pt}{\Huge}

The net effect would be to push the word "CHAPTER" one space to the left (since it is a right-aligned field), and to add a space after the chapter number (in this case "3") which effectively offsets the black bar to the right. The result is:

As in many things, preference plays a large role...unless your editor tells you otherwise ;^)