HTML code for an apostrophe

Question

Seemingly simple, but I cannot find anything relevant on the web.

What is the correct HTML code for an apostrophe? Is it ’?

Answer 1

I've found FileFormat.info's Unicode Character Search to be most helpful in finding exact character codes.

Entering simply ' (the character to the left of the return key on my US Mac keyboard) into their search yields several results of various curls and languages.

I would presume the original question was asking for the typographically correct U+02BC ʼ, rather than the typewriter fascimile U+0027 '.

The W3C recommends hex codes for HTML entities (see below). For U+02BC that would be ʼ, rather than ' for U+0027.

http://www.w3.org/International/questions/qa-escapes

Using character escapes in markup and CSS

Hex vs. decimal. Typically when the Unicode Standard refers to or lists characters it does so using a hexadecimal value. … Given the prevalence of this convention, it is often useful, though not required, to use hexadecimal numeric values in escapes rather than decimal values…

http://www.w3.org/TR/html4/charset.html

5 HTML Document Representation … 5.4 Undisplayable characters

…If missing characters are presented using their numeric representation, use the hexadecimal (not decimal) form, since this is the form used in character set standards.