javascript - 对年份数组进行排序(包括 BCE)

Question

有一个包含化学元素及其发现年份的对象数组:

[
   {"name": "hydrogen", "discovered": "1766"},
   {"name": "boron", "discovered": "1808"},
   {"name": "copper", "discovered": "9000 BCE"},
   {"name": "argon", "discovered": "1894"},
   {"name": "iron", "discovered": "before 5000 BCE"},
   {"name": "phosphorus", "discovered": "1669"}
]

我想要的是根据发现的年份对数组进行排序，因此最古老的(在本例中为铜)应该是第一项，最近的(氩)应该是最后一项。

//It should look like this in the end:
[
   {"name": "copper", "discovered": "9000 BCE"},
   {"name": "iron", "discovered": "before 5000 BCE"},
   {"name": "phosphorus", "discovered": "1669"},
   {"name": "hydrogen", "discovered": "1766"},
   {"name": "boron", "discovered": "1808"},
   {"name": "argon", "discovered": "1894"}
]

我遇到的问题是“before”、“BCE”、“CE”等几个关键字，我不知道如何处理。

有什么解决方案可以解决这个问题吗？

Answer 1

9000 BCE 与 -9000 年相同。

您可以简单地将那些 BCE(关键字 before 可能会被忽略，因为它无论如何都包含 BCE)数据字符串视为 - sort函数中的年份，如下:

const data = [{name:"hydrogen",discovered:"1766"},{name:"boron",discovered:"1808"},{name:"copper",discovered:"9000 BCE"},{name:"argon",discovered:"1894"},{name:"iron",discovered:"before 5000 BCE"},{name:"phosphorus",discovered:"1669"}];

const res = data.sort((a, b) => {
  const numA = (a.discovered.includes("BCE") ? -1 : 1)
              * a.discovered.replace(/\D/g, '')
  const numB = (b.discovered.includes("BCE") ? -1 : 1)
              * b.discovered.replace(/\D/g, '')
  return numA - numB
})

console.log(res)

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