iterama/node/distinct-async.js

Composable functional (async) iterable helpers

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.distinctAsync = void 0;

const distinctAsync = iterable => ({
  async *[Symbol.asyncIterator]() {
    let isFirst = true;
    let last;

    for await (const value of iterable) {
      if (isFirst || value !== last) {
        last = value;
        isFirst = false;
        yield value;
      }
    }
  }

});

exports.distinctAsync = distinctAsync;