Export assignment cannot be used when targeting ECMAScript modules

Question

I have created a npm project, in which I am using typescript configuration (tsconfig.json).

In one .ts file, I have code such as below:

export = function loginToLCSteps() {
    this.setDefaultTimeout(30 * 1000);
    let stage = serenity.callToStageFor({
        actor: (name) => Actor.named('James').whoCan(BrowseTheWeb.using(protractor.browser))
    });

    this.Given(/^that Doctor is on Login screen$/, function () {
        return stage.theActorCalled('James').attemptsTo(
            AccessLifecare.called()
        );
    });

    this.When(/^he enters credentials and click on Login button$/, function () {
        return stage.theActorCalled('James').attemptsTo(
            Login.called()
          );
      });

      this.Then(/^he should be navigate to Role and Care Unit selection screen$/, function () {
        return stage.theActorCalled('James').attemptsTo(
            Wait.until(SelectRoleAndUnitPage.selectRoleAndUnitLabel, Is.visible()),
        );
      });
};

tsconfig.json has module system as "commonjs".

"compilerOptions": { "baseUrl": "./", "outDir": "./dist/out-tsc", "sourceMap": true, "declaration": false, "module": "commonjs", "moduleResolution": "node" .....

The above code works with "commonjs" module loader. However, I want the module loader to be "es2015". Changing the module system to "es2015", gives below error in Visual Studio Code on the export = function loginToLCSteps() line:

Export assignment cannot be used when targeting ECMAScript modules. Consider using 'export default' or another module format instead. ts(1203)

The above code works on few of my peer machines.

I installed latest version of node, npm, Typescript however no success.

Answer 1

I'm a bit late, but maybe this can solve the problem:

export default ()= function loginToLCSteps() {

instead of

export = function loginToLCSteps() {

or

export default {}= () ={

or

export loginToLCSteps = () =>{