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So you should be replacing your ampersands with & when writing a URL in your markup. Note that replacing & with & is only done when writing the URL in HTML, where "&" is a special character (along with "<" and ">"). When writing the same URL in a plain text email message or in the location bar of your browser, you would use "&" and not ...
So an actual & got an & escape sequence to render an actual & because early parsers couldn't know if the & was the start of an escape sequence or just a literal &. There are many, many more. So when automated escapers and descapers do their thing with inputs and outputs, they sometimes screw up and will escape **&**amp; as **&**amp ...
In HTML (the language of the web), & and < among other symbols are used as part of the language, so when someone uses & to mean and, HTML has to translate it (temporarily) to something else (&) so that it won't be confused. (*) syntax is a set of grammatical rules for a given language, like how we always end a sentence with a period. In ...
The character in Unicode is U+0026 & AMPERSAND (&, &); this is inherited from the same value in ASCII. Apart from this, Unicode also has the following variants: U+FE60 ﹠ SMALL AMPERSAND (fullwidth CJK ideograph for East Asian typography) U+FF06 ＆ FULLWIDTH AMPERSAND (in block Halfwidth and Fullwidth Forms)
If you want one to appear in text on a web page you should use the encoded named entity "&"—more technical mumbo-jumbo at w3c.org. While most web browsers will let you get away without encoding them, stuff can get dicey in weird edge cases and fail completely in XML.
Ampersands are escaped like & If I write this HTML as Ampersands are escaped like & it will be displayed as: Ampersands are escaped like & So I actually need to write:
Ampersands are escaped like & which displays correctly as: Ampersands are escaped like &
encodeURIComponent(str.replace(/&/g, "&")); Share. Improve this answer. Follow edited Dec 5, 2022 at 10:18. BuZZ-dEE. 6,879 16 16 gold badges 73 73 silver badges 105 105 bronze badges. answered Aug 22, 2010 at 13:59. Andy E Andy E. 344k 86 86 gold badges 480 480 silver badges 448 448 bronze badges.
With the exception of HTML 2.0's ", &, <, and >, these entities are all new in HTML 4.0 and may not be supported by old browsers. Support in recent browsers is good. Support in recent browsers is good.
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