如何在JavaScript中从这个日期对象生成月份的名称(例如:10月/ 10月)?
var objDate = new Date("10/11/2009");
如何在JavaScript中从这个日期对象生成月份的名称(例如:10月/ 10月)?
var objDate = new Date("10/11/2009");
当前回答
我想到了一个部分解决方案。它使用正则表达式提取月份和日期名称。但当我查看区域和语言选项(窗口)时,我意识到不同的文化有不同的格式顺序……也许更好的正则表达式模式会有用。
function testDateInfo() {
var months = new Array();
var days = new Array();
var workingDate = new Date();
workingDate.setHours(0, 0, 0, 0);
workingDate.setDate(1);
var RE = new RegExp("([a-z]+)","ig");
//-- get day names 0-6
for (var i = 0; i < 7; i++) {
var day = workingDate.getDay();
//-- will eventually be in order
if (days[day] == undefined)
days[day] = workingDate.toLocaleDateString().match(RE)[0];
workingDate.setDate(workingDate.getDate() + 1);
}
//--get month names 0-11
for (var i = 0; i < 12; i++) {
workingDate.setMonth(i);
months.push(workingDate.toLocaleDateString().match(RE)[1]);
}
alert(days.join(",") + " \n\r " + months.join(","));
}
其他回答
我想到了一个部分解决方案。它使用正则表达式提取月份和日期名称。但当我查看区域和语言选项(窗口)时,我意识到不同的文化有不同的格式顺序……也许更好的正则表达式模式会有用。
function testDateInfo() {
var months = new Array();
var days = new Array();
var workingDate = new Date();
workingDate.setHours(0, 0, 0, 0);
workingDate.setDate(1);
var RE = new RegExp("([a-z]+)","ig");
//-- get day names 0-6
for (var i = 0; i < 7; i++) {
var day = workingDate.getDay();
//-- will eventually be in order
if (days[day] == undefined)
days[day] = workingDate.toLocaleDateString().match(RE)[0];
workingDate.setDate(workingDate.getDate() + 1);
}
//--get month names 0-11
for (var i = 0; i < 12; i++) {
workingDate.setMonth(i);
months.push(workingDate.toLocaleDateString().match(RE)[1]);
}
alert(days.join(",") + " \n\r " + months.join(","));
}
对于momentjs,只需使用格式符号。
const myDate = new Date()
const shortMonthName = moment(myDate).format('MMM') // Aug
const fullMonthName = moment(myDate).format('MMMM') // August
这是一种不依赖于硬编码数组并支持多个区域设置的方法。
如果你需要一个完整的数组:
var monthsLocalizedArray = function(locale) {
var result = [];
for(var i = 0; i < 12; i++) {
result.push(new Date(2010,i).toLocaleString(locale,{month:"long"}));
}
return result;
};
用法:
console.log(monthsLocalizedArray('en')); // -> ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"]
console.log(monthsLocalizedArray('bg')); // -> ["януари", "февруари", "март", "април", "май", "юни", "юли", "август", "септември", "октомври", "ноември", "декември"]
如果你只需要一个选定的月份(更快):
var monthLocalizedString = function(month, locale) {
return new Date(2010,month).toLocaleString(locale,{month:"long"});
};
用法:
console.log(monthLocalizedString(1, 'en')); // -> February
console.log(monthLocalizedString(1, 'bg')); // -> февруари
console.log(monthLocalizedString(1, 'de')); // -> Februar
经过测试,在Chrome和IE 11上运行良好。在mozilla上需要做一些修改,因为它返回整个日期。
只需要编写一个简单的toLocaleString包装器:
函数 LocalDate(locale) { this.locale = locale; } LocalDate.prototype.getMonthName = function(date) { return date.toLocaleString(this.locale,{month:“long”}); }; var objDate = new Date(“10/11/2009”); var localDate = new LocalDate(“en”); console.log(localDate.getMonthName(objDate)); localdate.locale = “ru”; console.log(localDate.getMonthName(objDate)); localdate.locale = “zh”; console.log(localDate.getMonthName(objDate));
也可以这样做:
var x = new Date().toString().split(' ')[1]; // "Jul"