另一个方法是将属性作为一个集合来访问:

var obj = {}; obj['prop'] = “值”;

最简单的是

const obj = <any>{};
obj.prop1 = "value";
obj.prop2 = "another value"

案例1:

var car = {type: "BMW", model: "i8", color: "white"};
car['owner'] = "ibrahim"; // You can add a property:

案例2:

var car:any = {type: "BMW", model: "i8", color: "white"};
car.owner = "ibrahim"; // You can set a property: use any type

另一个方法是将属性作为一个集合来访问:

var obj = {}; obj['prop'] = “值”;

这是Object的一个特殊版本。赋值，它会在每次属性更改时自动调整变量类型。不需要额外的变量、类型断言、显式类型或对象副本:

function assign<T, U>(target: T, source: U): asserts target is T & U {
    Object.assign(target, source)
}

const obj = {};
assign(obj, { prop1: "foo" })
//  const obj now has type { prop1: string; }
obj.prop1 // string
assign(obj, { prop2: 42 })
//  const obj now has type { prop1: string; prop2: number; }
obj.prop2 // number

//  const obj: { prop1: "foo", prop2: 42 }

注意:示例使用TS 3.7断言函数。与Object.assign不同，assign的返回类型是void。

晚不过，简单回答

let prop = 'name';
let value = 'sampath';
this.obj = {
   ...this.obj,
   [prop]: value
};