rimmel/dist/esm/sources/numberset-source.js

A Streams-Oriented UI library for the Rx.Observable Universe

import { map } from 'rxjs';
import { inputPipe } from '../utils/input-pipe.js';

/**
 * An Event Operator emitting a numerical dataset value from the underlying element instead of a regular DOM Event object
 * @returns OperatorFunction<Event, number>
 * @example <button data-foo="123" onclick="${source(numberset('foo'), isEven, stream)}"> ... </button>
**/
const numberset = (key) => map((e) => Number(e.target.dataset[key]));
/**
 * An Event Source emitting a numerical dataset value from the underlying element instead of a regular DOM Event object
 * @returns EventSource<number>
 * @example <button data-foo="123" onclick="${Numberset('foo', stream)}"> ... </button>
 * @example <button data-foo="123" onclick="${Numberset('foo', handlerFn)}"> ... </button>
**/
const Numberset = (key) => inputPipe(numberset(key));

export { Numberset, numberset };
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