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

0 vote306 views1 answer
Jest not toBe
TypeScript
1 vote270 views2 answers
Typescript object key enum
TypeScript
0 vote260 views1 answer
How to check if there is any point which lies inside the circle
TypeScript
0 vote247 views1 answer
Helpppppp!!!...........
TypeScript
18 votes259 views6 answers
Remove multiple elements from array es6
TypeScript
1 vote254 views1 answer
Geting request header in loopback4
TypeScript
0 vote281 views2 answers
Typeorm select join column querybuilder
TypeScript
0 vote255 views1 answer
Const formats = { time: { '24hour': {hour12: false, hours: 'numeric', minute: 'numeric'} } }; <IntlProvider locale={locale} messages={messages} formats={formats}> <FormattedTime value={someDate} format='24hour'/> </IntlProvider>
TypeScript
0 vote329 views1 answer
The pipe 'json' could not be found!
TypeScript
0 vote295 views1 answer
Check if graphic driver exists ubuntu
TypeScript