有什么方法可以简化这个if / else块吗？

Question

 function (flag) {
 if (flag) {
 let id = "name",key = "age"
 return {id,key};
 } else {
 let id = "boy",key = "girl"
 return {id,key};
 }
 }

Any other readable solutions to handle this if/else?

Answer 1

Consider just returning the plain object, rather than defining independent variables beforehand. You can also consider using the conditional operator and implicit return of an arrow function to cut down on the syntax noise, if you want:

const flagFn = flag => flag
  ? { id: 'name', key: 'age' }
  : { id: 'boy', key: 'girl' };

Answer 2

A couple options aside from what's already been answered:

const flagCheck = flag => {
    const id = flag ? 'name' : 'boy';
    const key = flag ? 'age' : 'girl';
    return { id, key };
};

const flagCheck = flag => ({
    id: flag ? 'name': 'boy',
    key: flag ? 'age': 'girl'
});