具有字段和子对象数组的对象的JavaScript数组？

Question

为什么这是无效的JavaScript？我有个数组。数组中的每个项目都有一个标题字段，也是一个子数组。子数组具有包含img字段的对象，有时也包含内容字段。

const content = [ 
    { 
    "title": "First title", 
    [ 
     {"img": img1, "content": "This is content"}, 
     {"img": img2}, 
     {"img": img3} 
    ] 
    }, 
    { 
    "title": "Second title", 
    [ 
     {"img": img4, "content": "This is also content"}, 
     {"img": img5}, 
     {"img": img6} 
    ] 
    } 
]; 

Answer 1

没有嵌套数组的属性名称。

const content = [ 
{ 
    "title": "First title", 
    "missingKey1" : [ 
     {"img": img1, "content": "This is content"}, 
     {"img": img2}, 
     {"img": img3} 
    ] 
    }, 
    { 
    "title": "Second title", 
    "missingKey2" : [ 
     {"img": img4, "content": "This is also content"}, 
     {"img": img5}, 
     {"img": img6} 
    ] 
    } 
];