javascript - 根据月份和年份过滤对象数组

Question

我想根据当前月份和年份显示对象

这会根据月份筛选对象，我还需要根据年份筛选对象。

var array = [{
    title: "a",
    date: "2018-03-29"
  }, {
    title: "b",
    date: "2018-04-13"
  }, {
    title: "c",
    date: "2018-04-12"
  }, {
    title: "leave",
    date: "2018-04-11"
  }, {
    title: "d",
    date: "2018-06-16"
  }],
  currentMonth = new Date().getMonth() + 1,
  events = array.filter(e => {
    var [_, month] = e.date.split('-'); // Or, var month = e.date.split('-')[1];
    return currentMonth === +month;
  });
console.log(events);

Answer 1

要按year 和month 过滤，您只需要获取currentYear 和currentMonth，然后获取迭代的 date 的 year 和 month。

你的代码应该是这样的:

//Get the currentYear and the currentMonth
currentMonth = new Date().getMonth() + 1,
currentYear = new Date().getFullYear(),

//Get the year and month from the iterated date
var [year, month] = e.date.split('-');

//Then filter the dates
events = array.filter(e => {
    var [year, month] = e.date.split('-'); // Or, var month = e.date.split('-')[1];
    return (currentMonth === +month) && (currentYear == year);
});

演示:

var array = [{
    title: "a",
    date: "2018-03-29"
  }, {
    title: "b",
    date: "2018-04-13"
  }, {
    title: "c",
    date: "2018-04-12"
  }, {
    title: "leave",
    date: "2018-04-11"
  }, {
    title: "d",
    date: "2018-06-16"
  }],
  currentMonth = new Date().getMonth() + 1,
  currentYear = new Date().getFullYear(),
  events = array.filter(e => {
    var [year, month] = e.date.split('-'); // Or, var month = e.date.split('-')[1];
    return (currentMonth === +month) && (currentYear == year);
  });
console.log(events);