如何用方括号替换打开和关闭花括号，并删除Java脚本ES6中json数组上的标签

Question

我有一个json数组，

var arr=[
{prjId: 230482046, prj: "#1 Cochran", Type: "Invoice", Date: "07-12-2019", Num: "T5917"},
{prjId: 230482182, prj: "#1 Cochran", Type: "Invoice", Date: "07-12-2019", Num: "T5919"},
{prjId: 210640692, prj: "#1 Cochran", Type: "Invoice", Date: "07-15-2019", Num: "T4256"},
{prjId: 210641051, prj: "#1 Cochran", Type: "Invoice", Date: "07-15-2019", Num: "T4298"},
{prjId: 210641170, prj: "#1 Cochran", Type: "Invoice", Date: "07-15-2019", Num: "T4300"}
];

我想在pdf表中显示这个json数组项作为表内容所以我用pdf制作第三方库但问题是，根据他们的代码我需要上面的json数组如下格式

var arr=[
[prjId,prj,Type,Date,Num],
[ 230482046, "#1 Cochran", "Invoice", "07-12-2019","T5917"],
[ 230482182, "#1 Cochran", "Invoice", "07-12-2019","T5919"],
[ 210640692, "#1 Cochran", "Invoice", "07-15-2019","T4256"],
[ 210641051, "#1 Cochran", "Invoice", "07-15-2019","T4298"],
[ 210641170, "#1 Cochran", "Invoice", "07-15-2019","T4300"]
];

我将如何实现这一目标？

Answer 1

我们可以使用Object.keys（）来获取对象的属性名称，使用Object.values（）来获取属性值。

尝试这个：

 var arr=[ {prjId: 230482046, prj: "#1 Cochran", Type: "Invoice", Date: "07-12-2019", Num: "T5917"}, {prjId: 230482182, prj: "#1 Cochran", Type: "Invoice", Date: "07-12-2019", Num: "T5919"}, {prjId: 210640692, prj: "#1 Cochran", Type: "Invoice", Date: "07-15-2019", Num: "T4256"}, {prjId: 210641051, prj: "#1 Cochran", Type: "Invoice", Date: "07-15-2019", Num: "T4298"}, {prjId: 210641170, prj: "#1 Cochran", Type: "Invoice", Date: "07-15-2019", Num: "T4300"} ]; var result = []; result.push(Object.keys(arr[0])); for (var item of arr) { result.push(Object.values(item)); } console.log(result);