【工具】前端 js 判断当前日期是否在当前自然周内

【工具】前端 js 判断当前日期是否在当前自然周内

function isCurrentNaturalWeek(targetDate) {
    const today = new Date();
    const dayOfWeek = today.getDay(); // 0（周日）到6（周六）

    // 计算本周一的日期（自然周从周一开始）
    const monday = new Date(today);
    monday.setDate(today.getDate() - dayOfWeek + (dayOfWeek === 0 ? -6 : 1)); 
    monday.setHours(0, 0, 0, 0);

    // 计算本周日的日期
    const sunday = new Date(monday);
    sunday.setDate(monday.getDate() + 6);
    sunday.setHours(23, 59, 59, 999);

    // 判断目标日期是否在区间内
    return targetDate >= monday && targetDate <= sunday;
}

// 示例：判断今天（2025-02-27，周四）是否在当前自然周
const currentDate = new Date('2025-02-27');
console.log(isCurrentNaturalWeek(currentDate)); // true