8000 Generic constraint with type list · Issue #2099 · microsoft/TypeScript · GitHub
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Generic constraint with type list #2099
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Generic constraint with type list#2099
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opened on Feb 21, 2015

It is a generalization of #2049 .
I would like to see generic specifying concrete types:

// Can specify only A<number> or A<string>
interface A<T is number|string|Object> { }  

interface B<T is number|string> extends A<T> {} // number|string is subtype of number|string|Object .

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