forked from mirrors/gecko-dev
db85ee3240
Differential Revision: https://phabricator.services.mozilla.com/D67701 --HG-- extra : moz-landing-system : lando
16 lines
491 B
JavaScript
16 lines
491 B
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
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"use strict";
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function registerStoreObserver(store, subscriber) {
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let oldState = store.getState();
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store.subscribe(() => {
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const state = store.getState();
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subscriber(state, oldState);
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oldState = state;
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});
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}
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exports.registerStoreObserver = registerStoreObserver;
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