具有多个值的数组的 JavaScript 输出显示单词 "object, object"

Question

这个问题已经有答案了:

What does [object Object] mean? (12 个回答)

已关闭 3 年前。

var dynastyReign = [ 
{"San Dynasty": "MXLI"},
{"Viloria Dynasty": "MCCCIIII"},
{"Tan Dynasty": "MCCCXCVIII"},  
{"Bon Dynasty": "MCDXLV"},   
{"Maiko Dynasty": "MDCLXIV"}, 
{"Paul Dynasty": "MCMXLIX"},
{"Andre Dynasty": "MMMXICX"}
];

document.write(dynastyReign.toString());

我尝试使用 toString 输出这个数组，每个值有两个值，但输出只给我 [object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object] .

如何停止显示宾语词，如果可能的话，我也希望只显示罗马数字部分，删除“王朝”。

Answer 1

试试这个:

var dynastyReign = [ 
  {"San Dynasty": "MXLI"},
  {"Viloria Dynasty": "MCCCIIII"},
  {"Tan Dynasty": "MCCCXCVIII"},  
  {"Bon Dynasty": "MCDXLV"},   
  {"Maiko Dynasty": "MDCLXIV"}, 
  {"Paul Dynasty": "MCMXLIX"},
  {"Andre Dynasty": "MMMXICX"}
];

var text = dynastyReign.map(d => Object.values(d)[0])
document.write(text);