设置星期几时遇到了麻烦,我使用的是与日历相关的查询字符串参数,并且我想将选定的日期用于另一个脚本,但我不能设置正确的一天。查询字符串参数采用以下格式:dd / mm / yyyy,并且鉴于此数据,我也试图获得正确的日期。
this.f = new Date();
this.f.setDate = getUrlParameter('date').split("/")[0];
this.f.setMonth = getUrlParameter('date').split("/")[1];
this.f.setFullYear = getUrlParameter('date').split("/")[2];
console.log(this.setMonth);
this.days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
this.months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
console.log(this.months[this.setMonth]);
您将日期对象的方法视为数据属性。您需要将它们称为方法,例如
function getUrlParameter() {
return '12/04/2019';
}
// Replace this with plain obj
var obj = {};
obj.f = new Date();
// Call methods, don't assign to properties
// The set* methods set values
obj.f.setDate(getUrlParameter('date').split("/")[0]);
// Subtract 1 from calendar month number as EMCScript months are zero based, April is 3
obj.f.setMonth(getUrlParameter('date').split("/")[1] - 1);
obj.f.setFullYear(getUrlParameter('date').split("/")[2]);
// The get* methods get values
// Use getMonth to get the month
console.log(obj.f.getMonth());
obj.days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
obj.months = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
console.log(obj.months[obj.f.getMonth()]);
但是,一次设置一个属性会引入错误,例如,如果月份是在4月创建的,而您尝试将日期设置为5月31日,则当日期设置为31时,它将变为5月1日(因为没有4月31日) ),因此您将获得5月1日而不是5月31日的日期。因此,一次性设置所有值:
let obj = {f: new Date()};
// Get date parta
let [day, month, year] = '31/05/2019'.split('/');
// Set values in one go
obj.f.setFullYear(year, month - 1, day);
console.log(obj.f.toLocaleDateString());
// But better to create the date with the right values
// from the start
let [day2, month2, year2] = '31/05/2019'.split('/');
let obj2 = {f: new Date(year2, month2 - 1, day2)};
console.log(obj2.f.toLocaleDateString());
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