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JavaScript JavaScript Basics Storing and Tracking Information with Variables Change the Value in a Variable

Posted by Tatiana Basa
Tatiana Basa
Courses Plus Student 157 Points

I didn't get anything from this lesson. ((((

I didn't get anything from this lesson. (((( I've read transcripts? I've watched the video and didnt't det it.

1 Answer

Alzubair Alshehhi
Alzubair Alshehhi
2,792 Points
Alzubair Alshehhi
Alzubair Alshehhi
2,792 Points

Think about it this way, Variables are like boxes to store information in them. Say we have a box that has 0 apples in it.

var box = 0

Now we would like to tell the computer to put 10 apples in the box. Then we could say.

box = 10

What if we wanted to add to that box 5 more apples? Well we could do the math our self and write.

box = 15

Or since we know that the box contains 10 apples already, we could simply add 5 and let it do the math. So we are simply saying, add the contents of box + 5 .

box = box + 5

And that can be shortened to.

box += 5

Which means the exact same thing, just a shorter way to write it. Does this help?

Tatiana Basa
Tatiana Basa
Courses Plus Student 157 Points

Thank you very much for your answer!!It was very helpful!!)))