venil7/last_elem_type.ts

Created June 26, 2019 20:18

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infer type of last element in array

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last_elem_type.ts

	type LastElem<T extends number> = [
	-1,0,1,2,3,4,5
	][T];

	type A = [number,string, boolean];
	type Z = A[LastElem<A['length']>] //boolean

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