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.
Soluzione
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Can you explain the difference between null and undefined in JavaScript?
Can you give more examples of when to use null?
What happens if I perform operations on a variable set to null?
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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:
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.
Soluzione
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