faf1ce0eb9
Signed-off-by: Bryan Frimin <bryan@getprobo.com> Signed-off-by: Sacha Al Himdani <sacha@getprobo.com>
31 lines
735 B
TypeScript
31 lines
735 B
TypeScript
export function times<T>(n: number, cb: (i: number) => T): T[] {
|
|
return Array.from({ length: n }, (_, i) => cb(i));
|
|
}
|
|
|
|
export function groupBy<T>(
|
|
arr: T[],
|
|
key: (item: T) => string,
|
|
): Record<string, T[]> {
|
|
return arr.reduce(
|
|
(acc, item) => {
|
|
const k = key(item);
|
|
if (!acc[k]) {
|
|
acc[k] = [];
|
|
}
|
|
acc[k].push(item);
|
|
return acc;
|
|
},
|
|
{} as Record<string, T[]>,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Check that a value is empty (null, undefined, empty string, empty array, empty object)
|
|
*/
|
|
export function isEmpty(v: unknown): boolean {
|
|
if (Array.isArray(v)) {
|
|
return v.find((v) => !isEmpty(v)) === undefined;
|
|
}
|
|
return !v;
|
|
}
|