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APOSTROPHE comments - Comments - VBA
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VBA - Comments - Apostrophe comments
Apostrophe Comments

A comment is marked by an apostrophe ('), and ignored when the code executes. Comments help explain your code to future readers, including yourself.

Since all lines starting with a comment are ignored, they can also be used to prevent code from executing (while you debug or refactor). Placing an apostrophe ' before your code turns it into a comment. (This is called commenting out the line.)

Sub InlineDocumentation()
  'Comments start with an "'"

  'They can be place before a line of code, which prevents the line from executing
  'Debug.Print "Hello World"

  'They can also be placed after a statement
  'The statement still executes, until the compiler arrives at the comment
  Debug.Print "Hello World"  'Prints a welcome message

'Comments can have 0 indention....
     '... or as much as needed

  '''' Comments can contain multiple apostrophes ''''

  'Comments can span lines (using line continuations) _
    but this can make for hard to read code

  'If you need to have mult-line comments, it is often easier to 
  'use an apostrophe on each line

  'The continued statement syntax (:) is treated as part of the comment, so 
  'it is not possible to place an executable statement after a comment
  'This won't run : Debug.Print "Hello World"
End Sub

'Comments can appear inside or outside a procedure


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