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JavaScript Treehouse Club - MASH MASH - JavaScript The Structure of Functions

Casiey Lebron
Casiey Lebron
3,187 Points
Posted by Casiey Lebron
Casiey Lebron
3,187 Points

Single line/Multi-line comments

In what instances can we use these comments, Can they replace out paragraphs, titles and text written on html pages?

2 Answers

Tommy Choe
Tommy Choe
38,156 Points
Tommy Choe
Tommy Choe
38,156 Points

Hey Casiey, comments can be used anytime you want to annotate or make a note in your code. Anything that is placed after/inside of the comments aren't read by the compiler. So they can "replace out" paragraphs, titles, and texts.

Hope that answers your question.

LaVaughn Haynes
LaVaughn Haynes
12,397 Points
LaVaughn Haynes
LaVaughn Haynes
12,397 Points

Tommy is correct. Another good use is when you think part of your code might be causing or will cause problems. You can use single or multi-line comments to comment it out for testing purposes. For example, if some value in my code depends on a complex function...

var answer = executeComplexFormula();

you comment out that line and set a specific value to test your code

//see what happens if a certain value is returned
//var answer = executeComplexFormula();
var answer = 17;
Casiey Lebron
Casiey Lebron
3,187 Points
Casiey Lebron
Casiey Lebron
3,187 Points

Awesome... thank you both!