我想像这样转换一个对象:
{"1":5,"2":7,"3":0,"4":0,"5":0,"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0}
输入一个键值对数组，如下所示:
[[1,5],[2,7],[3,0],[4,0]...].
如何将对象转换为JavaScript中的键值对数组?
当前回答
const persons = {
john: { age: 23, year:2010},
jack: { age: 22, year:2011},
jenny: { age: 21, year:2012}
}
const resultArray = Object.keys(persons).map(index => {
let person = persons[index];
return person;
});
//use this for not indexed object to change array
其他回答
下面是es6使用扩展操作符和Object.entries的“新”方法。
const data = {"1":5,"2":7,"3":0,"4":0,"5":0,"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0};
const dataSpread = [...Object.entries(data)];
// data spread value is now:
[
[ '1', 5 ], [ '2', 7 ],
[ '3', 0 ], [ '4', 0 ],
[ '5', 0 ], [ '6', 0 ],
[ '7', 0 ], [ '8', 0 ],
[ '9', 0 ], [ '10', 0 ],
[ '11', 0 ], [ '12', 0 ]
]
另一个解决方案是Object。输入不适合你。
const obj = { '1': 29, '2': 42 }; const arr = Array.from（Object.keys（obj）， k=>['${k}'， obj[k]]）; 控制台.log（到达）;
这是我的解决方案，我有同样的问题，似乎这个解决方案为我工作。
yourObj = [].concat(yourObj);
const persons = {
john: { age: 23, year:2010},
jack: { age: 22, year:2011},
jenny: { age: 21, year:2012}
}
const resultArray = Object.keys(persons).map(index => {
let person = persons[index];
return person;
});
//use this for not indexed object to change array
在Ecmascript 6中，
var obj = {"1":5,"2":7,"3":0,"4":0,"5":0,"6":0,"7":0,"8":0,"9":0,"10":0,"11":0,"12":0};
var res = Object.entries(obj);
console.log(res);
var obj = “1”:5 “2”:7, “3”:0, “4”:0, “5”:0, “6”:0, “7”:0, “8”:0, “9”:0, “10”:0, “11”:0, “12”:0 ); var res = Object.entries(obj); 游戏机。log (res);
