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:
nullprovides the non-existent value or empty value.nullhas to be assigned to a variable as it is not assigned by default (unlike theundefined).
12let number = null; console.log(number);
Swipe to start coding
Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.
Ratkaisu
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Pyyhkäise näyttääksesi valikon
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:
nullprovides the non-existent value or empty value.nullhas to be assigned to a variable as it is not assigned by default (unlike theundefined).
12let number = null; console.log(number);
Swipe to start coding
Declare a variable selectColor and assign the value of null to the variable and display the value of the variable.
Ratkaisu
Vaihda työpöytään todellista harjoitusta vartenJatka siitä, missä olet käyttämällä jotakin alla olevista vaihtoehdoistaKiitos palautteestasi!
Awesome!
Completion rate improved to 2single
