Invocation of first_name and last_name within the console.log() does not include the underscores ... ?

Go ahead and post your code in a comment so we can see what you are referring to. Thank you

This was in a question after a video lesson:

var first_name = "John";

var last_name = "Doe";

console.log(first name + " " + last name);

// end script example

My question is why the underscore wasn't included when the variables were called as parameters for console.log ... ?

Also, what is the ( ) part of the function called? I know that parameters and arguments go inside; but is there a specific name for this part of the function?

Hey Drew Bentrott,

I see exactly what you're saying. In that question, there is a typo in the invocation of console.log. It is supposed to be first_name and last_name. There have been a few other errors as well I've found with some other users, such as the logic test of null and undefined. I'm not sure if you've gotten to that yet.

The good news is, though, that this course will soon be replaced by Dave McFarland's courses JavaScript Basics and I believe JavaScript Loops, Arrays, and Objects.

Oh, I also edited your comment so that it would render better on the forums. You can check out on the Markdown Cheatsheet (located just below a comment or answer box) for how I did that.

And to answer your question about () after a function call. Those () tell JavaScript that we want to execute the function right then and there. They can also hold arguments that can be passed into the function. I'm not going to confuse you too much right now, but just remember that if you put a () after a function call, it will call the function, and you can put arguments into those (). For example:

function sayHi(name) {
//Will display "Hey there, Drew!" after being called with your name in a string below
  alert("Hey there, " + name + "!");
}
sayHi("Drew");

thank you, Marcus. I was beginning to count some of the typos, and I was wondering if it was just me.

No problem, Drew! If you have any questions, we're here to help. =]