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JavaScript:JS3 Requirements: Difference between revisions
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** XDuce or similar extensions to the JS2/ES4 type system | ** XDuce or similar extensions to the JS2/ES4 type system | ||
* Changes to the core language, in particular to error handling rules, to make it easier to add new syntax in future versions of the language (JS n, where n > 3) without scripts using those languages breaking in earlier browsers (JS 3..n-1) | * Changes to the core language, in particular to error handling rules, to make it easier to add new syntax in future versions of the language (JS n, where n > 3) without scripts using those languages breaking in earlier browsers (JS 3..n-1) | ||
** This requires lexical and syntactic grammar extensibility, not just error handling as in | ** This requires lexical and syntactic grammar extensibility, not just error handling as in [http://www.whatwg.org/specs/web-apps/current-work/#html5 HTML5] | ||
* BigInt and other Big numeric types, and pragma support to use them for numeric literals and operators by default | * BigInt and other Big numeric types, and pragma support to use them for numeric literals and operators by default | ||