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
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);
其他回答
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);
或者你可以使用Object.assign():
Const obj = {0: 1,1: 2,2: 3}; const arr =对象。分配([],obj); console.log (arr) // arr是[1,2,3]
使用for in
var obj = { "10":5, "2":7, "3":0, "4":0, "5":0, "6":0, "7":0,
"8":0, "9":0, "10":0, "11":0, "12":0 };
var objectToArray = function(obj) {
var _arr = [];
for (var key in obj) {
_arr.push([key, obj[key]]);
}
return _arr;
}
console.log(objectToArray(obj));
递归转换对象到数组
function is_object(mixed_var) {
if (mixed_var instanceof Array) {
return false;
} else {
return (mixed_var !== null) && (typeof( mixed_var ) == 'object');
}
}
function objectToArray(obj) {
var array = [], tempObject;
for (var key in obj) {
tempObject = obj[key];
if (is_object(obj[key])) {
tempObject = objectToArray(obj[key]);
}
array[key] = tempObject;
}
return array;
}
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
