如何在打字稿中定义计算属性

Question

I want to add an object which has dynamic property name into an array but I don't know how to define the array

class Driver {
    public id: string;
    public name: string;
    constructor(id , name) {
        this.id = id;
        this.name = name;
    }
}

let drivers: Driver[];
let driver = new Driver("1111","tom");
drivers.push({[driver.id]:driver})

Answer 1

Since you don't know what the key for those objects will be beforehand, you'll want to use an index signature . So for your example, you would define the type like so:

let drivers: {[id: string]: Driver}[];