我想减去2个可观察的数字
this.num1:Observable<number>
this.num2:Observable<number>
this.num3:Observable<number>
this.num1 = this.store.select(getNum1Count);
this.num2 = this.store.select(getNum2Count);
// this.num3 = difference of this.num1 and this.num2
在RXJS5中,我正在执行以下命令
this.num3 = Observable.combineLatest(this.num1,this.num2,(c1,c2)=> Math.abs(c1 - c2));
但是在RXJS6中,不推荐使用combineLatest:不推荐使用静态combineLatest as shown here
我们如何让它在RXJS 6中工作?
在试用combineJatest的RXJS6格式时,
combineLatest(this.num3,this.num2, this.num1, (c1,c2) => Math.abs(c1 - c2 )),filter(x => x !== NaN);
我收到错误The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type.
1 回答
我能够帮助它(通过gitter @Dorus和@GuillaumeUnice)
观察:作为一个开发人员,当一个简单的算术运算这么复杂时,这很奇怪 .