1 /** Symbol.observable addition */
2 /* Note: This will add Symbol.observable globally for all TypeScript users,
3 however, we are no longer polyfilling Symbol.observable */
5 interface SymbolConstructor {
6 readonly observable: symbol;
10 /** Symbol.observable or a string "@@observable". Used for interop */
11 export const observable = (() => typeof Symbol === 'function' && Symbol.observable || '@@observable')();