js在线时间转化

function formatRelativeTime(timestamp) {
    const now = new Date();
    const past = new Date(timestamp);
    const diffInSeconds = Math.floor((now - past) / 1000);

    if (diffInSeconds < 60) {
        return '刚刚';
    } else if (diffInSeconds < 3600) {
        const minutes = Math.floor(diffInSeconds / 60);
        return `${minutes}分钟前`;
    } else if (diffInSeconds < 86400) {
        const hours = Math.floor(diffInSeconds / 3600);
        return `${hours}小时前`;
    } else if (diffInSeconds < 172800) {
        return '昨天';
    } else {
        const date = past.toLocaleDateString();
        return date;
    }
}

// 使用示例
const timestamp = Date.now() - 3600 * 1000; // 1小时前的时间戳
console.log(formatRelativeTime(timestamp)); // 输出: "1小时前"