You can add a Unicode character to an HTML document by creating an HTML entity from:
- A named character reference — available for most common characters;
- A numeric code reference (either in decimal or hexadecimal) — available for all characters.
For example, the copyright symbol (©) is represented in the following way:
copy— named reference;
169— decimal numeric reference;
U+000A9— hexadecimal numeric reference.
You can create an HTML entity from any of these in the following ways:
©— by adding the named reference between
©— by adding the decimal reference between
©— by adding the hexadecimal reference between
Things to remember:
- All HTML entities begin with an ampersand (
&) and end with a semi-colon (
- For numeric references (i.e. both, decimal and hexadecimal) you must add a hash (
#) after the ampersand (
- For hexadecimal references you must also prefix the hexadecimal number with
xto indicate that the numbers that follow should be interpreted as hexadecimal;
- For hexadecimal references, you may have noticed that
U+000was omitted from the entity. This is because
U+is merely used as a convention to denote that the hexadecimal digits that follow are Unicode code points, and this is never added to the HTML entity. The leading zeros, however, are optional to add.
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