Function getFinal

dash/dash-renderer/src/persistence.js:472–473

(propName, prevVal)

    } = getProps(layout);

    const getFinal = (propName, prevVal) =>
        propName in newProps ? newProps[propName] : prevVal;
    const finalPersistence = getFinal('persistence', persistence);

    if (!canPersist || !(persistence || finalPersistence)) {