数据分析达人的时间武器：从7天到12个月的日期范围获取秘籍！

2024-01-19 04:02:21

作为一名数据分析专家，时间是至关重要的维度。从7天的短时间范围到12个月的长期范围，灵活获取日期范围的能力对于理解数据趋势和做出明智决策至关重要。为了满足这一需求，本文将深入探讨JavaScript中获取日期范围的最佳实践。

1. 近7天

const sevenDaysAgo = new Date();
sevenDaysAgo.setDate(sevenDaysAgo.getDate() - 7);

2. 近30天

const thirtyDaysAgo = new Date();
thirtyDaysAgo.setDate(thirtyDaysAgo.getDate() - 30);

3. 近60天

const sixtyDaysAgo = new Date();
sixtyDaysAgo.setDate(sixtyDaysAgo.getDate() - 60);

4. 本月

const firstDayOfMonth = new Date();
firstDayOfMonth.setDate(1);

const lastDayOfMonth = new Date(firstDayOfMonth);
lastDayOfMonth.setMonth(lastDayOfMonth.getMonth() + 1);
lastDayOfMonth.setDate(0);

5. 本周

const firstDayOfWeek = new Date();
firstDayOfWeek.setDate(firstDayOfWeek.getDate() - (firstDayOfWeek.getDay() + 6) % 7);

const lastDayOfWeek = new Date(firstDayOfWeek);
lastDayOfWeek.setDate(lastDayOfWeek.getDate() + 6);

6. 本年

const firstDayOfYear = new Date();
firstDayOfYear.setMonth(0);
firstDayOfYear.setDate(1);

const lastDayOfYear = new Date(firstDayOfYear);
lastDayOfYear.setFullYear(lastDayOfYear.getFullYear() + 1);
lastDayOfYear.setDate(0);

7. 距离当前日期的近几天/后几天

const daysOffset = 5;

const startDate = new Date();
startDate.setDate(startDate.getDate() - daysOffset);

const endDate = new Date();
endDate.setDate(endDate.getDate() + daysOffset);