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Introduction to JavaScript

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Null

What is Null

The data type null represents that there is no value. It is a primitive value in javascript.

To have a better understanding of null, we must know these two features about null:

  • null provides the non-existent value or empty value.
  • null has to be assigned to a variable as it is not assigned by default (unlike the undefined).

              
12

            
let number = null;
console.log(number);
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Task

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Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.

Solution

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SectionΒ 3. ChapterΒ 30
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Null

What is Null

The data type null represents that there is no value. It is a primitive value in javascript.

To have a better understanding of null, we must know these two features about null:

  • null provides the non-existent value or empty value.
  • null has to be assigned to a variable as it is not assigned by default (unlike the undefined).

              
12

            
let number = null;
console.log(number);
copy
Task

Swipe to start coding

Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.

Solution

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

close

Awesome!

Completion rate improved to 2

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