Course Content
Introduction to JavaScript
Sometimes you need a part of your code not to be executed.
You don't want to delete all the code to see the execution of a separate part of the code, it's not convenient. Sometimes it is necessary to stop the execution of the non-working part of the code to finish it later. There are many such situations, and they are all different.
There are comments.
Note
Comments are a syntax for hiding part of the code from the interpreter or compiler. Used to document code for other developers.
Single-line Comments
Single-line comments block the full line of code. The code above and below is executed.
Single-line comments syntax is so simple. You need to add //
before the code in line:
This can be used to block multiple lines of code in a row:
Also, you can use it to comment the last part in one line:
Multi-line Comments
Consider a case when we have a lot of code. For example, 299 lines. It will take a long time to comment on each line. That's why there are multi-line comments.
Multi-line comments syntax starts with /*
and ends with */
. All code inside will be commented:
You can use multi-line comments to comment a part of the line:
Single-line comment syntax:
Select the correct answer
Multi-line comment syntax:
Select the correct answer
Section 1.
Chapter 4