For the GetLength type, you can actually just access the length property via bracket notation and receive the same result:
typeGetLength<Textendsunknown[]>=T["length"];
I would recommend this method more because it looks like it's intrinsic behavior built within TypeScript to set that and I would assume it would also be faster and result in less type computations. Finally, it would also get rid of the never fail-safe in the original GetLength type.
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For the
GetLengthtype, you can actually just access thelengthproperty via bracket notation and receive the same result:I would recommend this method more because it looks like it's intrinsic behavior built within TypeScript to set that and I would assume it would also be faster and result in less type computations. Finally, it would also get rid of the
neverfail-safe in the originalGetLengthtype.