Comments (3)
Duplicate of #46958 (and others).
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w.r.t. #46958 (comment)
Changing a function from not-overloaded to overloaded has fairly pervasive effects in areas like contextual typing, generic inference, and how exactly it can be invoked when the method operand is a union
fwiw the includes
here still isn't an overload
I believe the startsWith
/endsWith
need not be either, if that's a blocker, e.g.
startsWith<SearchString extends string, Position extends number | undefined = undefined>(searchString: SearchString, position?: Position):
this is Position extends number
? `${string}${SearchString}${string}`
: `${SearchString}${string}`
template string literals are inherently combinatorially explosive, so a call like
startsWith(union of 24) && endsWith(union of 24)
produces a union of 576 elements, which is bad from a performance and comprehensibility perspective
this is a legitimate concern, but is it more of an issue with template literal types than the implementation of String
methods? i suppose something can be said about encouraging/discouraging these combinatorial explosions though..
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This issue has been marked as "Duplicate" and has seen no recent activity. It has been automatically closed for house-keeping purposes.
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