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JavaScript Practice Object Interaction Checking Out and Returning a Book Demo: Checking Out and Returning a Book

Mikel Cati
Mikel Cati
8,045 Points
Posted by Mikel Cati
Mikel Cati
8,045 Points

!set and get!

Hello,

I am trying to understand when we set out the parameter holds the value of this._out which is false and then we set this._out = out (im really confused because if out(the parameter) holds already the value of this._out which is already false its like were saying this._out(false) = out(false) . And also at the conditional if(out) <= (means that if out is false (which will return true because out is indeed false) run the code?)

What if i did this.... ///this out = false; if(!out) // if out is not false{ /* run the code */ }

1 Answer

Doron Geyer
seal-mask
.a{fill-rule:evenodd;}techdegree
Doron Geyer
Full Stack JavaScript Techdegree Student 13,897 Points
Doron Geyer
.a{fill-rule:evenodd;}techdegree
Doron Geyer
Full Stack JavaScript Techdegree Student 13,897 Points

Hi Mikel Cati , its quite easy to get confused here. The reason is the use of the word out as the parameter which I think they do to maintain continuity with how they have been teaching getters and setters.

set out(out){
        this._out = out;

        if (out) {
            const newDueDate = new Date();
            newDueDate.setDate(newDueDate.getDate() + 14);
            this.dueDate = newDueDate;
        } else {
            this.dueDate = null;
        }
}

so what I did to make this a little clearer is just change that word to something that would make more sense to you , read through this and see if it helps you get a better idea of whats happening.

set out(trueOrFalse){
        this._out = trueOrFalse;

        if (true) {
            const newDueDate = new Date();
            newDueDate.setDate(newDueDate.getDate() + 14);
            this.dueDate = newDueDate;
        } else {
            this.dueDate = null;
        }
}

you will see if you change those names in your code it still works as intended but its a little easier to understand whats actually happening.

If this answer helped resolve your question please select best answer to close this off.

cheers, Doron