luhn-generator
Version:
A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm
12 lines (10 loc) • 435 B
text/typescript
/** Symbol.observable addition */
/* Note: This will add Symbol.observable globally for all TypeScript users,
however, we are no longer polyfilling Symbol.observable */
declare global {
interface SymbolConstructor {
readonly observable: symbol;
}
}
/** Symbol.observable or a string "@@observable". Used for interop */
export const observable = (() => typeof Symbol === 'function' && Symbol.observable || '@@observable')();