Js, using new objects can not call methods

Question

I tried to JS takes the object as a parameter and passes it to another constructor, the new object cannot get the method code is as follows

I have a constructor Operation, responsible for defining the user operation interface and put the real algorithm logic on the prototype chain (someThing function)

code:

    const Operation = function (operationController) {
        this.operationController = operationController;
    }

    Operation.prototype.someThing = function () {
        console.log('It fails here!');
    };

There is an object oneOperation which defines different operations, because there can be multiple operation objects, for example: twoOperation and threeOperation etc...

code:

    const oneOperation = {
        // I will get error doSomeThing is not a function
        doSomeThing: function () {
            this.someThing();
        }
    }

    const aUserOperation = new Operation(oneOperation);

Finally, create an instance through the User constructor, then pass in the aUserOperation control operation, and monitor the event through addEventListener

code:

    const User = function (operation) {
        this.userOperation = operation;
        this.initListenerOperation = function () {
            window.addEventListener('keydown', function() {
                oneUser.userOperation.operationController.doSomeThing();
            });
        }
    }

    const oneUser = new User(aUserOperation);
    oneUser.initListenerOperation();

I will get error doSomeThing is not a function, Please help me, or there is a better way

Thanks

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