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They don't have to, but as long as they want to market themselves as a "typed superset of Javascript" (see homepage), they do. For many people, that is the poin
by aaron-lebo 9y ago
They don't have to, but as long as they want to market themselves as a "typed superset of Javascript" (see homepage), they do. For many people, that is the point.
- jrs95 9y agoYep. And this is important, it allows people to move most JS projects incrementally to TS projects. If they fall far behind the features that many JS projects are using, that won't be true anymore, and those people will start using Flow instead (flow.org)
- WorldMaker 9y agoSimilarly it is useful for TS to track the Stage 3 proposals of future features and offer them early, as JS users may pick those up with Babel or other polyfills. Typescript's own transpilation behavior of Stage 3 proposal can sometimes be a useful test for the feature while browsers work on their own implementations.