Function writeStoredJson

script.js:89–97

(key, value)

}

function writeStoredJson(key, value) {
    try {
        localStorage.setItem(key, JSON.stringify(value));
        return true;
    } catch (error) {
        console.warn(`Unable to persist settings for ${key}`, error);
        return false;
    }
}

function normalizeCountryCode(value) {
    if (typeof value !== 'string') return '';