我可能会这样写(因为很少有我手边没有下划线库):

var _ = require('underscore');

var a = [ 'a', 'b', 'c' ];
var obj = _.extend({}, a);
console.log(obj);
// prints { '0': 'a', '1': 'b', '2': 'c' }

令I = 0; let myArray = ["first"， "second"， "third"， "fourth"]; const arrayToObject = (arr) => 对象。分配(arr{},……。Map (item => ({[i++]: item}))); console.log (arrayToObject (myArray));

或使用

myArray = ["first"， "second"， "third"， "fourth"] console.log (myArray{…})

这不是直接相关的，但我来这里寻找一个合并嵌套对象如一行

const nodes = {
    node1: {
        interfaces: {if1: {}, if2: {}}
    },
    node2: {
        interfaces: {if3: {}, if4: {}}
    },
    node3: {
        interfaces: {if5: {}, if6: {}}
    },
}

解决方案是结合使用reduce和对象扩展:

const allInterfaces = nodes => Object.keys(nodes).reduce((res, key) => ({...res, ...nodes[key].interfaces}), {})

快速和肮脏的#2:

var i = 0
  , s = {}
  , a = ['A', 'B', 'C'];

while( i < a.length ) { s[i] = a[i++] };

.reduce((o,v,i)=>(o[i]=v,o), {})

(文档)

或者更冗长

var trAr2Obj = function (arr) {return arr.reduce((o,v,i)=>(o[i]=v,o), {});}

or

var transposeAr2Obj = arr=>arr.reduce((o,v,i)=>(o[i]=v,o), {})

最短的一个香草JS

JSON.stringify([["a", "X"], ["b", "Y"]].reduce((o,v,i)=>{return o[i]=v,o}, {}))
=> "{"0":["a","X"],"1":["b","Y"]}"

更复杂的例子

[["a", "X"], ["b", "Y"]].reduce((o,v,i)=>{return o[v[0]]=v.slice(1)[0],o}, {})
=> Object {a: "X", b: "Y"}

甚至更短(通过使用函数(e) {console.log(e);} === (e)=>(console.log(e)，e))

 nodejs
> [[1, 2, 3], [3,4,5]].reduce((o,v,i)=>(o[v[0]]=v.slice(1),o), {})
{ '1': [ 2, 3 ], '3': [ 4, 5 ] }

[/ docs]

这是我刚刚写的递归函数。这很简单，而且效果很好。

// Convert array to object
var convArrToObj = function(array){
    var thisEleObj = new Object();
    if(typeof array == "object"){
        for(var i in array){
            var thisEle = convArrToObj(array[i]);
            thisEleObj[i] = thisEle;
        }
    }else {
        thisEleObj = array;
    }
    return thisEleObj;
}

下面是一个例子(jsFiddle):

var array = new Array();
array.a = 123;
array.b = 234;
array.c = 345;
var array2 = new Array();
array2.a = 321;
array2.b = 432;
array2.c = 543;
var array3 = new Array();
array3.a = 132;
array3.b = 243;
array3.c = 354;
var array4 = new Array();
array4.a = 312;
array4.b = 423;
array4.c = 534;
var array5 = new Array();
array5.a = 112;
array5.b = 223;
array5.c = 334;

array.d = array2;
array4.d = array5;
array3.d = array4;
array.e = array3;


console.log(array);

// Convert array to object
var convArrToObj = function(array){
    var thisEleObj = new Object();
    if(typeof array == "object"){
        for(var i in array){
            var thisEle = convArrToObj(array[i]);
            thisEleObj[i] = thisEle;
        }
    }else {
        thisEleObj = array;
    }
    return thisEleObj;
}
console.log(convArrToObj(array));

结果: