初始化类的数组：Angular 5

Question

我正在尝试以角度5初始化类的数组。

export class B{

  public Colors: string;
  public Temp: number;
  public Numbers: number;

}

export class A{

  public MyTable: B[];
  public othervar: number;
  ...
  ...
}

然后我尝试像这样初始化MyTable：

var test = new A();

test.MyTable[0].Numbers = 25;
test.MyTable[0].Colors= "blue";

这是正确的吗？

Answer 1

您还有new B()的新用法：

const test = new A();

test.MyTable = [];
test.MyTable[0] = new B();
test.MyTable[0].Numbers = 25;
test.MyTable[0].Colors= "blue";