对象类型'{}'上不存在属性'condition'

Question

>我在对象中添加键和值时遇到问题，但出现错误，例如类型"{}"对象上不存在属性"条件"。

static deleteProductReview(request: Request) {
let deleteParam  = { };
deleteParam['condition']={'name': "ssssss"},
deleteParam['params']={
'reviews_ratings': {
'regno': "468sdsdd")
}
};
return deleteParam;
}

预期输出：

{
condition:{
name: ssssss
},
params:{
reviews_ratings:{
regno:468sdsdd
}
}
}

Answer 1

一种选择是立即分配值，打字稿将推断对象类型

static deleteProductReview(request: Request) {
let deleteParam = { 
condition: { name : "ssssss" },
params: {
reviews_rating: {
regno: "468sdsdd"
}
}
};
return deleteParam;
}

如果要在特定条件下动态添加属性，并且不想为deleteParam定义特定类型，则可以将其标记为any

static deleteDynamicProductReview(request: Request) {
let deleteParam: any = { };
deleteParam['condition']={'name': "ssssss"},
deleteParam['params']={
'reviews_ratings': {
'regno': "468sdsdd")
}
};
return deleteParam;
}

请注意，您不会对从deleteDynamicProductReview返回的对象进行自动完成，因为它的类型为any。