The const variables are block-scoped variables, that is, they follow the same scoping rules as the variables that are declared using the let keyword. The following example demonstrates the scope of the constant variables:
const a = 12; // accessible globallyfunction myFunction() { console.log(a); const b = 13; // accessible throughout function if(true) { const c = 14; // accessible throughout the "if" statement console.log(b); }console.log(c);}myFunction();
The output of the preceding code is:
1213ReferenceError Exception
Here, we can see that constant variables behave in the same way as block-scoped variables when it comes to scoping rules.
