javascript - 如何使用 javascript/jquery 在第一个 json 元素处获取 json 数组中所有键的值

Question

var resultJSON = [{"name":"AAA","createdDate":"8/14/2019"},{"name":"ABAB","_id":"52f0e7719c3fccfabfaaf5218bad7d22","createdDate":"8/14/2019"},{"name":"BBB","_id":"848e3d2fcedad749fa8dc22b97db663a","createdDate":"8/14/2019"}];

for (var k in resultJSON[0]);
alert(resultJSON[k]);

标签： javascriptjquery

Answer 1

使用Object.keys()：

var resultJSON = [{"name":"AAA","createdDate":"8/14/2019"},{"name":"ABAB","_id":"52f0e7719c3fccfabfaaf5218bad7d22","createdDate":"8/14/2019"},{"name":"BBB","_id":"848e3d2fcedad749fa8dc22b97db663a","createdDate":"8/14/2019"}];
console.log(Object.keys(resultJSON[0]));