patronum/once/index.js

☄️ Effector utility library delivering modularity and convenience

import { is, sample, createStore } from 'effector';
export function once(unitOrConfig) {
  var source;
  var reset;
  if (is.unit(unitOrConfig)) {
    source = unitOrConfig;
  } else {
    ({
      source,
      reset
    } = unitOrConfig);
  }
  var $canTrigger = createStore(true, {
    name: "$canTrigger",
    sid: "ys2jl0"
  });
  var trigger = sample({
    and: [{
      source,
      filter: $canTrigger
    }],
    or: {
      name: "trigger",
      sid: "e3xto3"
    }
  });
  $canTrigger.on(trigger, () => false);
  if (reset) {
    $canTrigger.reset(reset);
  }
  return trigger;
}