### `const` Does Not Allow Hoisting

As discussed in the previous chapter, `let` does not allow hoisting i.e. we cannot use a variable before the declaration. Just like `let` we can not use hoisting with the `const`.it is only supported with `var`.

MYPLANET = 'earth';
console.log(MYPLANET);
const MYPLANET;

### Summary:

-   We can neither change the values of the `const` variables through reassignment nor we can redeclare them.
-   Value should be assigned to `const` variables at the time of declaration.

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The syntax of the JavaScript programming language is the set of rules that defines how a JavaScript program will be written and interpreted (by both the runtime system and by human readers).

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Constant 3/3

`const` Does Not Allow Hoisting

解答

Summary:

Constant 3/3

const Does Not Allow Hoisting

解答

Summary:

`const` Does Not Allow Hoisting