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in this video we are going to see the
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difference between null and undefined in
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whenever we declare a variable
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and if you don't use equal to operator
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and assign any value then it is
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undefined so no values are assigned to
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it even null is a value but it is not
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in the same way if I declare a variable
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and then if I use equal top return and
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use null as the value then it is null it
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means that the value is null
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the null and undefined are similar
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and the both means an absence of value
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that particular variable in the storage
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if we reference that variable it it is
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not going to have any value in it
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if we use double equal to operator that
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they are same so for example
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undefined this will return true because
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cases the the value is not present the
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value is absent so let's copy this
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so this will return true for me see it
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returned true because I am using
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meaning there is the there is absence of
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but let's use strict equality operator
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console.log null strict equality
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operator undefined this will Define this
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this will return false because
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the type is not the same
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it has been set the value the variable
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value has been set to null but undefined
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means it has not been set so let's run
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this will return false when we use
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strict equality operator
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so both the null and undefined are equal
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when we use equality operator it means
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that there is absent of value
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both the null and undefined are not null
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if you use strict equality operator
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a variable value has been assigned as
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null but undefined means it was not at
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all assigned any value not even null
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please check the video description
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From the Block first you can get this
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sample quotes consult dots log
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statements and explanation
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and you can reference it
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this is most commonly asked
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so have a better understanding of it
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so that it will prove your JavaScript
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I hope it was helpful
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thank you for watching
