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Unnecessary use of HTML character references may significantly reduce HTML readability. If the character encoding for a web page is chosen appropriately, then HTML character references are usually only required for markup delimiting characters as mentioned above, and for a few special characters (or none at all if a native Unicode encoding like ...
Web pages authored using HyperText Markup Language may contain multilingual text represented with the Unicode universal character set.Key to the relationship between Unicode and HTML is the relationship between the "document character set", which defines the set of characters that may be present in an HTML document and assigns numbers to them, and the "external character encoding", or "charset ...
Windows code pages are sets of characters or code pages (known as character encodings in other operating systems) used in Microsoft Windows from the 1980s and 1990s. Windows code pages were gradually superseded when Unicode was implemented in Windows, [citation needed] although they are still supported both within Windows and other platforms, and still apply when Alt code shortcuts are used.
Windows-31J is the most used non-UTF-8/Unicode Japanese encoding on the web. However, many people and software packages, including Microsoft libraries, [7] declare the Shift JIS encoding for Windows-31J data, although it includes some additional characters, and some of the existing characters are mapped to Unicode differently.
In HTML and XML, a numeric character reference refers to a character by its Universal Character Set/Unicode code point, and uses the format: &#xhhhh;. or &#nnnn; where the x must be lowercase in XML documents, hhhh is the code point in hexadecimal form, and nnnn is the code point in decimal form.
Microsoft was one of the first companies to implement Unicode in their products. Windows NT was the first operating system that used "wide characters" in system calls.Using the (now obsolete) UCS-2 encoding scheme at first, it was upgraded to the variable-width encoding UTF-16 starting with Windows 2000, allowing a representation of additional planes with surrogate pairs.
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Declared character set for the 10 million most popular websites since 2010 UTF-8 has been the most common encoding for the World Wide Web since 2008. [ 2 ] As of January 2025 [update] , UTF-8 is used by 98.5% of surveyed web sites (and 99.2% of top 100,000 pages and 98.8% of the top 1,000 highest-ranked web pages), the next most popular ...