@lifaon/rx-js-light/cjs/src/observable/built-in/from/without-notifications/many-observables/combine-latest/combine-latest.cjs

Blazing fast Observables

"use strict";
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.combineLatest = void 0;
var single_1 = require("../../values/single/single.cjs");
function combineLatest(observables) {
  var length = observables.length;
  if (length === 0) {
    return (0, single_1.single)([]);
  } else {
    return function (emit) {
      var values = Array.from({
        length: length
      });
      var received = Array.from({
        length: length
      });
      var receivedCount = 0;
      var unsubscribe = observables.map(function (subscribe, index) {
        return subscribe(function (value) {
          values[index] = value;
          if (!received[index]) {
            received[index] = true;
            receivedCount++;
          }
          if (receivedCount === length) {
            emit(values);
          }
        });
      });
      return function () {
        for (var i = 0, l = unsubscribe.length; i < l; i++) {
          unsubscribe[i]();
        }
      };
    };
  }
}
exports.combineLatest = combineLatest;