Character class

A character class is like a group of letters, numbers or symbols that all have something in common. Think of it like a group of friends who all like the same things. For example, the letters "a, e, i, o, u" are all part of the character class for vowels because they all make vowel sounds.

When you use a character class in coding or programming, you can tell the computer to look for any letter or number that falls into that specific group. This can be really helpful when you're trying to search for or replace certain characters in a big chunk of text. It's kind of like having a special tool that can grab all of the green Legos out of your pile at once instead of sorting through them one by one.

Basically, a character class is just a way to sort and organize letters, numbers, and symbols so you can work with them more easily.