Function addCallback

dash/dash-renderer/src/actions/dependencies.js:1275–1292

(callback)

    const callbacks = [];

    function addCallback(callback) {
        if (callback) {
            const foundIndex = foundCbIds[callback.resolvedId];
            if (foundIndex !== undefined) {
                const foundCb = callbacks[foundIndex];
                foundCb.changedPropIds = mergeMax(
                    foundCb.changedPropIds,
                    callback.changedPropIds
                );
                if (callback.initialCall) {
                    foundCb.initialCall = true;
                }
            } else {
                foundCbIds[callback.resolvedId] = callbacks.length;
                callbacks.push(callback);
            }
        }
    }

    function addCallbackIfArray(idStr) {
        return cb =>