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You cannot declare a constant with the same name as a function or variable in the same scope. For example:

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1. // THIS WILL CAUSE AN ERROR  

2. function f() {};  

3. const f = 5;  

5. // THIS WILL CAUSE AN ERROR ALSO  

6. function f() {  

7.   const g = 5;  

8.   var g;  

10.   //statements  

11. }  

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