Why 'delete' will not work with local variables in javascript ? -


here code

(function(x){    delete x;    return x; })(1);

even after deleted variable x , still work , return value 1.

is delete work object property , global variables?

the delete operator only used deletion of properties on object. cannot leveraged delete variable-- nor there use cases in javascript such thing necessary. can set variable null or undefined substitute.


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