js如何用变量定义对象属性？

Question

上代码：

var key1 = 'abc';
var data1 = 'DDDDDDDDDDD';
var key2 = 'def';
var data2 = 'GGGGGGGGGGG';
var rst = {
    key1: data1,
    key2: data2
};
console.log(rst);

结果是：

rst = {
    key1: DDDDDDDDDDD,
    key2: GGGGGGGGGGG
}

我想得到这样的结果

{

rst = {
    abc: DDDDDDDDDDD,
    def: GGGGGGGGGGG
}

请问该如何实现？

Answer 1

var key1 = 'abc';
var data1 = 'DDDDDDDDDDD';
var key2 = 'def';
var data2 = 'GGGGGGGGGGG';
var rst = {
    [key1]: data1,
    [key2]: data2
};
console.log(rst);

Answer 2

var key1 = 'abc';
var data1 = 'DDDDDDDDDDD';
var key2 = 'def';
var data2 = 'GGGGGGGGGGG';
var rst = {};
rst[key1] = data1;
rst[key2] = data2;
console.log(rst);

Answer 3

var rst={}
rst[key1]=data1
rst[key2]=data2