Uniqueness type

Imagine you have a lot of toys in a big toy box. Each toy is different from the other, and they come in all shapes, sizes, and colors. Uniqueness Type is just like that, but instead of toys in a toy box, it's about things we use to create websites and apps, called variables.

Variables are like containers that store information. They allow us to give a name to a specific type of information. For example, we can create a variable called "age" to store someone's age.

Now, let's say we have two variables called "name" and "age." These variables are different from each other because one holds a name, and the other holds a number. This is what we call their data type.

Uniqueness Type is a special kind of data type. It tells us that each variable can only hold one value at a time. Just like how each toy in the toy box is unique and can only be in one place at a time.

For example, if we have a variable called "favorite color" and set it to "blue," then we can't set it to "red" later. It will always be "blue." This ensures that our data is consistent and reliable.

So, just remember that Uniqueness Type means each variable can only hold one value at a time, just like each toy in a toy box can only be in one place at a time.