Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.
Lære Constant 1/3 | Data Types and Variables
Introduction to JavaScript (staging)
course content

Kursusindhold

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
2. JavaScript syntax
3. Data Types and Variables

book
Constant 1/3

What are Constants?

Constants are created just like the var and let. We use the const keyword for initializing constants, for example.

12
const NUMBER = 58; console.log(NUMBER);
copy

Variables declared with const are very much similar to the variables declared with the let keyword, but the only difference is that we cannot reassign values to the variables declared with the const keyword.

123
const PI = 3.141592653589793; PI = 3.14; // error console.log(PI);
copy
Opgave

Swipe to start coding

Declare a variable by using the const keyword with the identifier FIXED and assign the value 10 to it also display the value on the console.

Løsning

Switch to desktopSkift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder
Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 3. Kapitel 9
toggle bottom row

book
Constant 1/3

What are Constants?

Constants are created just like the var and let. We use the const keyword for initializing constants, for example.

12
const NUMBER = 58; console.log(NUMBER);
copy

Variables declared with const are very much similar to the variables declared with the let keyword, but the only difference is that we cannot reassign values to the variables declared with the const keyword.

123
const PI = 3.141592653589793; PI = 3.14; // error console.log(PI);
copy
Opgave

Swipe to start coding

Declare a variable by using the const keyword with the identifier FIXED and assign the value 10 to it also display the value on the console.

Løsning

Switch to desktopSkift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder
Var alt klart?

Hvordan kan vi forbedre det?

Tak for dine kommentarer!

Sektion 3. Kapitel 9
Switch to desktopSkift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder
Vi beklager, at noget gik galt. Hvad skete der?
some-alt