Typescript range

Javascript range of integers with spread

// n is your max range
[...Array(n).keys()]

let n = 10
[...Array(n).keys()] // [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

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 vote296 views1 answer
Reset specific field in reactive form
TypeScript
0 vote264 views1 answer
A ball is fired from a sling shot. The initial velocity is 2.25 m/s at 22.5. What are the vertical and horizontal components of the ball's initial velocity as it leaves the sling shot?
TypeScript
0 vote323 views1 answer
How to compare two date in typescript
TypeScript
0 vote300 views1 answer
How to use client and webresource objects to do https call
TypeScript
1 vote272 views1 answer
Insert value to the top of array in angular
TypeScript
0 vote274 views1 answer
A "region" configuration value is required for the "s3" service (e.g., "us-west-2"). A list of available public regions and endpoints can be found at http://docs.aws.amazon.com/general/latest/gr/rande.html.
TypeScript
0 vote300 views2 answers
Typeorm select join column querybuilder
TypeScript
0 vote281 views1 answer
Text size in plots in r
TypeScript
3 votes282 views2 answers
What is typescript
TypeScript
0 vote283 views1 answer
Non-abstract class does not implement inherited abstract member typescript
TypeScript