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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | 1x 1x 2x 2x 2x 10x 10x 10x | import { purry } from './purry';
/**
* Sorts the list according to the supplied function in ascending order.
* @param array the array to sort
* @param fn the mapping function
* @signature
* R.sortBy(array, fn)
* @example
* R.sortBy(
* [{ a: 1 }, { a: 3 }, { a: 7 }, { a: 2 }],
* x => x.a
* )
* // => [{ a: 1 }, { a: 2 }, { a: 3 }, { a: 7 }]
* @data_first
* @category Array
*/
export function sortBy<T>(array: T[], fn: (item: T) => any): T[];
/**
* Sorts the list according to the supplied function in ascending order.
* @param fn the mapping function
* @signature
* R.sortBy(fn)(array)
* @example
* R.pipe(
* [{ a: 1 }, { a: 3 }, { a: 7 }, { a: 2 }],
* R.sortBy(x => x.a)
* ) // => [{ a: 1 }, { a: 2 }, { a: 3 }, { a: 7 }]
* @data_last
* @category Array
*/
export function sortBy<T>(fn: (item: T) => any): (array: T[]) => T[];
export function sortBy() {
return purry(_sortBy, arguments);
}
function _sortBy<T>(array: T[], fn: (item: T) => any): T[] {
const copied = [...array];
return copied.sort((a, b) => {
const aa = fn(a);
const bb = fn(b);
return aa < bb ? -1 : aa > bb ? 1 : 0;
});
}
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