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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.

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

              
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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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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.

Soluzione

/*let firstName = "William";
let lastName = "Paul";
let age = 25;
let country = 'Germany';*/

let fullName = 'William Paul';
console.log(fullName);

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

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Sezione 2. Capitolo 15
let firstName = "william";
let lastName = "paul";
let age = 25;
let country = 'Germany';

let fullName = 'William Paul';
console.log(fullName);

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