/TypeScript/Typescript type number range

Typescript type number range

type PrependNextNum<A extends Array<unknown>> = A['length'] extends infer T ? ((t: T, ...a: A) => void) extends ((...x: infer X) => void) ? X : never : never;

type EnumerateInternal<A extends Array<unknown>, N extends number> = { 0: A, 1: EnumerateInternal<PrependNextNum<A>, N> }[N extends A['length'] ? 0 : 1];

export type Enumerate<N extends number> = EnumerateInternal<[], N> extends (infer E)[] ? E : never;

export type Range<FROM extends number, TO extends number> = Exclude<Enumerate<TO>, Enumerate<FROM>>;

Source: stackoverflow.com

Typescript range

const range = (start, end) => Array.from({length: (end - start)}, (v, k) => k + start);

Source: stackoverflow.com

Similar codes

1 vote156 views1 answer
Ionic 4 set root page when logout
TypeScript
0 vote167 views1 answer
In what phaseof meiosisof prophase1 homologous chrosomes gets close to each other
TypeScript
0 vote183 views1 answer
Type 'FormGroup' is missing the following properties from type 'NgForm': submitted, _directives, form, ngSubmit, and 18 more
TypeScript
0 vote168 views1 answer
Compare two objects deep
TypeScript
0 vote176 views1 answer
Spilit with comma in ts
TypeScript
21 votes192 views3 answers
Installing bootstrap in angular 9
TypeScript
1 vote308 views2 answers
Ngfor ionic example
TypeScript
0 vote199 views1 answer
Typescript reduce initial value type
TypeScript
0 vote178 views1 answer
@babel/preset-typescript
TypeScript
3 votes171 views2 answers
Select elements id like jquery
TypeScript