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Apprendre Null | Data Types and Variables
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Introduction to JavaScript

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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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Tâche

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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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Section 3. Chapitre 30
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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
Tâche

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

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Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 3. Chapitre 30
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single

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