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
如果你正在使用lodash，它可以像这样简单:
var arr = _.values(obj);
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 }
let objectKeys = Object.keys(obj);
let answer = objectKeys.map(value => {
return [value + ':' + obj[value]]
});
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）;
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);
你可以使用Object.keys()和map()来做到这一点
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 result = Object.keys（obj）.map（（key） => [Number（key）， obj[key]]）; 控制台.log（结果）;
