如何从键包含连字符的对象解构属性？
Eg:
{
accept-ranges:"bytes",
cache-control:"public, max-age=0",
content-length:"1174",
content-type:"application/json",
date:"Mon, 03 Oct 2016 06:45:03 GMT",
etag:"W/"496-157892e555b"",
last-modified:"Mon, 03 Oct 2016 06:14:57 GMT",
x-powered-by:"Express"
}
现在要得到content-type and x-powered-by使用解构从对象中获取值？
就像不能用连字符声明变量一样，也不能直接解构为变量。您需要将变量重命名为其他名称才能在当前范围内访问它。您可以使用以下解构语法来执行此操作：
const x = {
"accept-ranges":"bytes",
"cache-control":"public, max-age=0",
"content-length":"1174",
"content-type":"application/json",
date:"Mon, 03 Oct 2016 06:45:03 GMT",
etag:"W/496-157892e555b",
"last-modified":"Mon, 03 Oct 2016 06:14:57 GMT",
"x-powered-by":"Express"
};
const { "accept-ranges": acceptRanges } = x;
console.log(acceptRanges); // "bytes"
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