Question

我正在尝试添加和删除＆＃34; events＆＃34;中的元素。我不知道该怎么做。请有人帮帮我。我也尝试过splice（）。

  var events =
  [
    { name: "Meeting 1", date: "Aug 2 2017", hour: "18:15" },
    { name: "Meeting 2", date: "Aug 1 2017", hour: "09:21" },
    { name: "Team", date: "Aug 1 2017", hour: "18:30" },

    { name: "St Mary Day", date: "Aug 15 2017", hour: "00:00" },
    { name: "St Andrew Day", date: "Nov 30 2017", hour: "00:00" },
    { name: "ROU National Day", date: "Dec 01 2017", hour: "00:00" },
    { name: "1st Day of Christmas", date: "Dec 25 2017", hour: "00:00" },
    { name: "2nd Day of Christmas", date: "Dec 26 2017", hour: "00:00" },
    { name: "Company Holiday", date: "Dec 27 2017", hour: "00:00" },
    { name: "Company Holiday", date: "Dec 28 2017", hour: "00:00" },
    { name: "Company Holiday", date: "Dec 29 2017", hour: "00:00" }
  ];



function myFunction() {
  console.log("myfunction");
  var input = document.getElementById('mod').value;
  console.log("input is" + input);

  events.forEach(function (events) {
    console.log("enum events");
    console.log(events.name);

    if (events.name == input) {
      var length = events.length;
      console.log("aici");
      events.push({ "name": "Tony Montana", "date": "Aug 3 2017", "hour": "18:00" });
    }
  });
}

Answer 1

var events =
  [
    { name: "Meeting 1", date: "Aug 2 2017", hour: "18:15" },
    { name: "Meeting 2", date: "Aug 1 2017", hour: "09:21" },
    { name: "Team", date: "Aug 1 2017", hour: "18:30" },
    { name: "St Mary Day", date: "Aug 15 2017", hour: "00:00" },
    { name: "St Andrew Day", date: "Nov 30 2017", hour: "00:00" },
    { name: "ROU National Day", date: "Dec 01 2017", hour: "00:00" },
    { name: "1st Day of Christmas", date: "Dec 25 2017", hour: "00:00" },
    { name: "2nd Day of Christmas", date: "Dec 26 2017", hour: "00:00" },
    { name: "Company Holiday", date: "Dec 27 2017", hour: "00:00" },
    { name: "Company Holiday", date: "Dec 28 2017", hour: "00:00" },
    { name: "Company Holiday", date: "Dec 29 2017", hour: "00:00" }
  ];



events.forEach(function (event) {
    if (event.name == "Meeting 2") {
    
       // Removes the "Meeting 2" element
      events = events.filter(evt => evt.name != "Meeting 2")
      
      // Pushes the "Tony Montana" element
      events.push({ "name": "Tony Montana", "date": "Aug 3 2017", "hour": "18:00" });
    }
});
console.log("events array is now", events)

关于要删除的元素，您的代码不会尝试删除元素，因此我不知道删除内容的条件。但是你总是可以过滤你的数组，例如：

events = events.filter( event => event.name!=="Meeting 2" )

将使用name : "Meeting 2"删除元素。

JavaScript错误：推送不是一个功能

1 个答案: