Anonymous function to log into the console or to pass an event?

Around 2 minutes of the video, Andrew suggests to print the code to the console to check eventual mistakes and etc. To do that, he creates and anonymous function by typing the following code:

$("#imageGallery a").click(function() {
    console.log();
});

Later in the video, around 6 minutes, he finds a method to stop the default behavior of the browser. For doing that he passes an event inside of a function by typing the following snippet of code:

$("#imageGallery a").click(function(event) {
    event.preventDefault;
});

I am just confused if the anonymous function was created to print things to the console or if it was created to pass an event later. If it was created just to pass an event in the future, why it was created earlier? If it was created to print things to the console, how does that affect this action?

Thanks!