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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 | 1x 1x 1x 1x 5x 5x 1x 4x 1x 3x 3x 9x 5x | import { pipe } from "@benneq/function";
import { filter, map } from "@benneq/iterable";
import { Entry, isUndefined } from "@benneq/object";
import {
isString,
stringPredicate,
StringPredicateInput,
} from "@benneq/string";
/**
* Returns all values from a {@link URLSearchParams} object matching the
* `keyPredicate`.
*
* @example
* ```ts
* const getValues = get("k1");
*
* const urlSearchParams = new URLSearchParams([
* ["k1", "v1"],
* ["k2", "v2"],
* ]);
*
* const values = getValues(urlSearchParams);
* console.log(values); // ["v1"]
* ```
*/
export const get = (
keyPredicate?: StringPredicateInput
): ((urlSearchParams: URLSearchParams) => Iterable<string>) => {
if (isUndefined(keyPredicate)) {
return (urlSearchParams) => urlSearchParams.values();
} else if (isString(keyPredicate)) {
return (urlSearchParams) => urlSearchParams.getAll(keyPredicate) || [];
} else {
const predicate = stringPredicate(keyPredicate);
return pipe(
filter<Entry<string, string>>(([key]) => predicate(key)),
map<Entry<string, string>, string>(([_key, value]) => value)
);
}
};
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