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![Samuel Kleos](https://uploads.teamtreehouse.com/production/profile-photos/11699126/micro_Square_Photo_-_Tahir.jpg)
Samuel Kleos
Front End Web Development Techdegree Student 13,118 PointsWhy does console.dir have no argument?
The code in the video at 4:05 reads as follows:
studentProfile.on("end", console.dir);
I don't understand how a reference to the console.dir
method is passed in because I cannot see how a response body is being passed into console.dir
.
Shouldn't it be like below?:
studentProfile.on("end", (res) => console.dir(res));
1 Answer
![Steven Parker](https://uploads.teamtreehouse.com/production/profile-photos/969492/micro_tool_chess_set_2.jpg)
Steven Parker
230,688 PointsThat would work, but it creates an unnecessary anonymous function that has no purpose but to call console.dir
. The anonymous function relies on being passed the event object just as console.dir
does if you use it by itself as the callback.
Remember that when you define the handler, you only name the function. But when it is actually called, the system will pass the object to it as the argument.
Samuel Kleos
Front End Web Development Techdegree Student 13,118 PointsSamuel Kleos
Front End Web Development Techdegree Student 13,118 PointsI had to look up the difference between 'event handler' and 'event listener'. Makes sense now. Cheers.