ELI5: Explain Like I'm 5

Array (data structure)

An array is like a toy box that can hold lots of toys. But instead of toys, we can put numbers, words, or anything we want inside it. Each thing we put inside is called an "element".

The toys in the toy box are arranged in a certain order. We can do the same thing with the elements in an array by giving them an order. We call this order the "index".

Let's say we have an array with three elements: "apple", "banana", and "orange". We give an index to each element starting from 0. So "apple" will have an index of 0, "banana" will have an index of 1, and "orange" will have an index of 2.

We can use this index to find a specific element in the array. For example, if we want to find the word "banana", we can say "give me the element with the index of 1", and the array will give us back "banana".

Arrays are useful because they can store lots of data in a very organized way. We can add new elements, delete old ones, and change their order whenever we need to. It's like having a toy box that can always fit all of our toys, no matter how many we have!