Question

如何在JavaScript数组中使用if语句。下面是我尝试过的代码，但它还没有工作。

var today = new Date();

var dd = today.getDate();

var mm = today.getMonth() + 1;

var yyyy = today.getFullYear();

var today = yyyy + '-' + mm + '-' + dd;


//--------------------- Begin Of Calendar Event ---------------------------//

var calendarEvents = [

  if (today == today) {

    {
      title: 'Nigeria Independence',
      url: 'http://google.com/',
      start: today
    }

  }

];

//--------------------- End Of Calendar Event ----------------------------//

Answer 1

首先，你的情况总是如此。所以改变它：

if ((new Date()) == today) {

此外，上述情况可能无效，因为new Date()不是today。你需要正确格式化。

其次，要在数组中包含条件，请使用三元运算符：

＆＃13;

var today = new Date();
var calendarEvents = [
  (today == today) ? {
    title: 'Nigeria Independence',
    url: 'http://google.com/',
    start: today
  } :
  "Not Today"
];

console.log(calendarEvents);

＆＃13;

Answer 2

使用Push方法添加到数组。

var today = new Date();

    var dd = today.getDate();

    var mm = today.getMonth() + 1;

    var yyyy = today.getFullYear();

    var today = yyyy + '-' + mm + '-' + dd;


    //--------------------- Begin Of Calendar Event ---------------------------//

    var calendarEvents = [];

      if (today == today) {

        var data = {
               title: 'Nigeria Independence',
               url: 'http://google.com/',
               start: today
               }

    //add to array
    calendarEvents.push(data);
      }



    //--------------------- End Of Calendar Event ----------------------------//

Answer 3

这样做，以便今天 =今天，然后创建数组

var today = new Date();

var dd = today.getDate();

var mm = today.getMonth() + 1;

var yyyy = today.getFullYear();

var today = yyyy + '-' + mm + '-' + dd;


//--------------------- Begin Of Calendar Event ---------------------------//



  if (today == today) {

   var calendarEvents = [
      {
        title: 'Nigeria Independence',
        url: 'http://google.com/',
        start: today
      } 
   ];

  }



//--------------------- End Of Calendar Event ----------------------------//

如何在JavaScript数组中使用if语句

3 个答案: