Protracto-TypeScript错误：参数类型boolean未分配给参数类型boolean

Question

I am new to typescript and don't know how to debug this error which am getting in my page object code. Here is the error which typescript is throwing:

Error:(101, 50) TS2345:Argument of type '(isEnabled: boolean) => Promise<CloudletPolicyBean> | undefined' is not assignable to parameter of type '((value: boolean) => CloudletPolicyBean | IThenable<CloudletPolicyBean>) | undefined'.

My Code:

    import {ClType} from "./ClType";
    export class ClPolicyBean {
    private type: ClType;
    private name: string;
    private description: string;

    public setType(type: ClType): void {
        this.type = type;
    }

    public getType(): ClType {
        return this.type;
    }

    public setName(name: string): void {
        this.name = name;
    }

    public getName(): string {
        return this.name;
    }

    public setDescription(description: string): void {
        this.description = description;
    }

    public getDescription(): string {
        return this.description;
    }
}

Page Object:

import {browser, element, by, ElementFinder,ElementArrayFinder} from "protractor”;
import {ClPolicyBean} from "../dsl/ClPolicyBean";
export class CreateClPolicyDialog{
public constructor() {
    super(true);
}
private createPolicyButton: ElementFinder = element(by.css("button[class *= 'submit-button']"));

public isSubmitButtonEnabled(): wd.promise.Promise<boolean> {
    return this.createPolicyButton.isEnabled();
}
public submit(): wd.promise.Promise<CloudletPolicyBean> {

    return this.isSubmitButtonEnabled().then(isEnabled => {
        if(isEnabled) {

            let cl:ClPolicyBean = new ClPolicyBean();

            this.getSelectedClType().then(type => {
                cl.setType(type);
            });
            return this.createPolicyButton.click().then(() => {
                   ExtendedExpectedConditions.waitForElementNotVisible(this.dialogContainer, 30000);
                   return cl;
                });
            }
        });
    }
}

Now, in my Page object code TypeScript is complaining when I am trying to use isSubmitButtonEnabled. I am new to typescript any help would be appreciated.

Answer 1

isSubmitButtonEnabled returns a promise. In submit in if statement you are trying to check is result of isSubmitButtonEnabled true. It is not.

Use something like that:

public isSubmitButtonEnabled() {
    return this.createPolicyButton.isEnabled().then((enabledBool) => {
        return enabledBool;
    })
}