javascript - 为什么在创建对象数组时出现错误？

Question

我的目标是创建一个 JavaScript 对象数组，并希望输出采用如下格式:

journal = [
  {
    events: ["work", "ice cream", "cauliflower",
      "lasagna", "touched tree", "brushed teeth"
    ],
    squirrel: false
  },
  {
    events: ["weekend", "cycling", "break", "peanuts",
      "soda"
    ],
    squirrel: true
  }

];

目标是使用给定的参数(事件和松鼠)从以下函数构建

let journal = [];

function addEntry(events, squirrel) {
  ...........
  ...........
}

我写了下面的代码，输出给我一个错误:“false is not a function”。如何修复该错误并获得预期的输出？谢谢

let journal = [];

function addEntry(events, squirrel) {
  journal.push(
    ({
      events: ["work", "ice cream", "cauliflower", "lasagna", "touched tree", "brushed teeth"]
    }, false)
    ({
      events: ["weekend", "cycling", "break", "peanuts", "soda"]
    }, true)
  )
}
addEntry(console.log(journal));

Answer 1

当您使用push 推送多个值时，您需要用, 将它们分开。这里你有这种格式的 (obj,false)()，因为逗号运算符返回最后一个操作数，所以你实际上结束了 false()

let journal = [];

function addEntry(events, squirrel) {
  journal.push(
    ({
      events: ["work", "ice cream", "cauliflower", "lasagna", "touched tree", "brushed teeth"]
    }, false),
    ({
      events: ["weekend", "cycling", "break", "peanuts", "soda"]
    }, true)
  )
}
addEntry(journal);
console.log(journal)

在这里，如果您打算只推送对象，则不需要包装 () 并且如果您需要对象中的多个属性，则可以像这样添加内部对象

 {
   key: value,
   key: value
 }

let journal = [];

function addEntry(events, squirrel) {
  journal.push({...events,squirrel})
}
addEntry({
    events: ["work", "ice cream", "cauliflower", "lasagna", "touched tree", "brushed teeth"]},true);
addEntry({
    events: ["weekend", "cycling", "break", "peanuts", "soda"]},false)
console.log(journal)