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Introduction to JavaScript

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Commenting in JavaScript. Multi-line Comments

Multi-line Comments
Multiline comments have a purpose same as single-line comments.
Multiline comments start with two symbols: /*. To end the comment, we use these symbols */ again. Everything in these symbols will be commented out.


              
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/* class  WebDeveloper{
    constructor(firstName, lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }
}
let me = new WebDeveloper('Robin',  'Wieruch');
console.log(me);
*/
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Swipe to start coding

In the following code, we only need the fullName variable. Your task is to comment out all the variables except the fullName variable using multi-line comment.

Lösning

Summary:

  • Comments are used to illustrate the code and make the program more clear for developers.
  • Commented part is not implemented by the browser.
  • We can comment just a line of code.
  • We can comment entire block of code

Switch to desktopByt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedan
Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

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Commenting in JavaScript. Multi-line Comments

Multi-line Comments
Multiline comments have a purpose same as single-line comments.
Multiline comments start with two symbols: /*. To end the comment, we use these symbols */ again. Everything in these symbols will be commented out.


              
123456789

            
/* class  WebDeveloper{
    constructor(firstName, lastName) {
        this.firstName = firstName;
        this.lastName = lastName;
    }
}
let me = new WebDeveloper('Robin',  'Wieruch');
console.log(me);
*/
copy
Uppgift

Swipe to start coding

In the following code, we only need the fullName variable. Your task is to comment out all the variables except the fullName variable using multi-line comment.

Lösning

Summary:

  • Comments are used to illustrate the code and make the program more clear for developers.
  • Commented part is not implemented by the browser.
  • We can comment just a line of code.
  • We can comment entire block of code

Switch to desktopByt till skrivbordet för praktisk övningFortsätt där du är med ett av alternativen nedan
Var allt tydligt?

Hur kan vi förbättra det?

Tack för dina kommentarer!

close

Awesome!

Completion rate improved to 2

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