luhn-generator/update/node_modules/rxjs/_esm2015/internal/observable/concat.js

A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

import { of } from './of';
import { concatAll } from '../operators/concatAll';
export function concat(...observables) {
    return concatAll()(of(...observables));
}
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