使用javascript以天为单位计算日期时间

Question

我在datetime中有一个日期，我需要用javascript中的当前日期来计算它，以检查是否已经过去了7天。

var created_at = 2021-05-20; //return 2021-05-20 14:00:00
var data = new Date();
var dataAtual = data.getFullYear() + "-" + ("0" + (data.getMonth() + 1)).substr(-2) + "-" + ("0" + data.getDate()).substr(-2);
var result = data - created_at;
if(result < 7){
var create_date = true;
console.log(true);
} else {
var created_date = false;
console.log(false);
}

Answer 1

你能试试下面的代码吗

var date1 = new Date('2021-05-20 14:00:00')
var date2 = new Date()
var resulu = date2.getDate() - date1.getDate()
if(result < 7){
var create_date = true;
console.log(true);
} else {
var created_date = false;
console.log(false);
}

Answer 2

获取以毫秒为单位的日期差异并转换为天。

const old_date = new Date('2021-05-20');
const today = new Date();
const diff_days = (today - old_date) / 24 * 60 * 60 * 1000;
if (diff_days < 7) {
console.log('older than a week');
} else {
console.log('in last week');
}