// 方法一 obj.foo = true; // 方法二 obj[‘a‘ + ‘bc‘] = 123;
var obj = {
  foo: true,
  abc: 123
};
let propKey = ‘foo‘;
let obj = {
  [propKey]: true,
  [‘a‘ + ‘bc‘]: 123
};
let obj = {
  [‘h‘ + ‘ello‘]() {
    return ‘hi‘;
  }
};
 
obj.hello() // hi
原文:https://www.cnblogs.com/blogZhao/p/12560924.html