Question

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rated 0 times [ 34] [ 4] / answers: 1 / hits: 36785 / 10 Years ago, sat, june 7, 2014, 12:00:00

I'm trying to comment out code that I used from a tutorial but haven't actually seen a ?-mark used in JavaScript...

This is a small part of the code below:

this.year = (isNaN(year) || year == null) ? calCurrent.getFullYear() : year;

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Member since Sun, Aug 29, 2021

3 Years ago

answered 10 Years ago neildrews · Accepted Answer

What you are referring to is the ternary operator which is an inline conditional statement. To illustrate:

 this.year = (isNaN(year) || year == null) ? calCurrent.getFullYear() : year;

is equivalent to

if(isNaN(year) || year == null){

       this.year=calCurrent.getFullYear()

 }

 else{

        this.year=year;

 }