Kursusindhold
Introduction to JavaScript (staging)
Introduction to JavaScript (staging)
Boolean 2/4
Boolean Data Type
We use the typeof operator to check the data type of variables, for example.
let isRaining = true; console.log(typeof isRaining); // or like this console.log(typeof(isRaining));
As you can see in the above code we declared a variable named isRaining with the value of true, and its data type is boolean as expected.
Swipe to start coding
Declare a variable with the name isSunRises and set its value as true. Then check the type of isSunRises by using typeof() and display the output.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederTak for dine kommentarer!
Boolean 2/4
Boolean Data Type
We use the typeof operator to check the data type of variables, for example.
let isRaining = true; console.log(typeof isRaining); // or like this console.log(typeof(isRaining));
As you can see in the above code we declared a variable named isRaining with the value of true, and its data type is boolean as expected.
Swipe to start coding
Declare a variable with the name isSunRises and set its value as true. Then check the type of isSunRises by using typeof() and display the output.
Løsning
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående mulighederTak for dine kommentarer!
Skift til skrivebord for at øve i den virkelige verdenFortsæt der, hvor du er, med en af nedenstående muligheder