js数组怎么转为对象

Question

如题。
比如a = [1,2,3,4,5]，怎么把a转为对象，最好简洁一点， 求教。
我想把数组json化，类似这样：
['a','b','c']
to:

{
0: 'a',
1: 'b',
2: 'c'
}

Answer 1

我猜 你想这样 Object.assign({},[1,2,3])
或者这样 {...['a','b','c']}

Answer 2

let arr = ['啦啦','呵呵','哥哥','嗯嗯'];
let obj = {...arr}

Answer 3

new Object(a)

Answer 4

var a = ['a','b','c']
var obj = {}
a.forEach((item,index)=>{obj[index] = item})
console.log(obj)

Answer 5

var test = ['a','b','c'];

function toObj (arr) {
    var result = {};
    for(var a=0; a<arr.length; a++) {
        result[a] = arr[a];
    }
    return result;
}

console.log(toObj(test)); //{0: "a", 1: "b", 2: "c"}

Answer 6

Answer 7

3

var obj = new Object();
var arr = [1,2,3,4,5];
for (var x in arr){

obj[x] = x;

}

Answer 8

不知道你说的对象是什么意思，数组本来就是对象，叫Array（数组）对象
键值队的话

var b = {};
a.map(function(e,i){
    b[i]=e;
});

Answer 9

var arr=['啦啦','呵呵','哥哥','嗯嗯']
var obj={}
for(var key  in arr){
    obj[key]=arr[key]
}
console.log(obj)//{0: "啦啦", 1: "呵呵", 2: "哥哥", 3: "嗯嗯"}

Answer 10

关键转为JSON对象后，有啥用处？