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December 15, 2022 07:37 pm GMT
Original Link: https://dev.to/tylim88/typescript-exceed-recursion-limitation-18pm
Typescript Exceed Recursion Limitation
This is a proof of concept post, personally I do not find any use of this, yet
Typescript recursion stop at 49th or 999th loop
type CreateArrayWithLengthX< LENGTH extends number, ACC extends unknown[] = [],> = ACC['length'] extends LENGTH ? ACC : CreateArrayWithLengthX<LENGTH, [...ACC, 1]>type A = CreateArrayWithLengthX<999>['length'] // 999type B = CreateArrayWithLengthX<1000>['length'] // any
This is not good if you want to dynamically generate array type with length more than 999
solution is to add another dimension
type CreateArrayWithLengthX< LENGTH extends number, ACC extends unknown[] = [],> = ACC['length'] extends LENGTH ? ACC : CreateArrayWithLengthX<LENGTH, [...ACC, 1]>type Exceed999< ARR extends 1[],> = [...ARR['length'] extends 0 ? []: [...CreateArrayWithLengthX<999>,...Exceed999<ARR extends [...infer S extends 1[], infer P] ? S : never>]]type V = Exceed999<CreateArrayWithLengthX<10>>['length'] // 10x999 = 9990now you can dynamically create array type with length larger than 999
however keep in mind that the max length of an array type is 10,000
It is possible to create an array with any length less than 10,000, not just the multiplier of 999, but that would involve a lot of works and I want to keep thing simple here
Original Link: https://dev.to/tylim88/typescript-exceed-recursion-limitation-18pm
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