In JavaScript, `const` is a keyword that is used to declare a variable with a value that cannot be reassigned. This means that once you assign a value to a `const` variable, you cannot change that value later in your code.

For example, if you declare a variable like this:

``` javascript
const age = 5;
```

You cannot do this later in your code:
    
``` javascript
age = 6;
```

This will result in an error.

However, you can still access the value of the const variable using its name, just like any other variable. So you can still do this:

``` javascript
console.log(age);
```

---

In the code below we have a variable `myNumber` that is being changed by a random number.

Prevent the variable from changing by changing its declaration with `const`.

Const - Prevent Variable Reassignment