Design pattern

Design patterns are like instructions for grown-ups who are building things. You know how you have instructions for building a toy or a puzzle? Well, design patterns are like that, but for bigger things like software programs or websites.

Think of it like building blocks. You have different shapes of blocks, like squares, triangles, and circles. You can use those blocks to build all sorts of things, like towers, bridges, and animals. Design patterns are like building blocks, too. They're a way to organize the code for a program, so it's easier to read and understand.

When people build software programs or websites, they often run into the same problems over and over. Design patterns are solutions to those problems that have been tried and tested by other people. If you use a design pattern, you can be pretty sure it will work well and make your program or website better.

For example, let's say you're building a program that needs to connect to the internet. That's a problem lots of people have already solved, so there's a design pattern for it. The design pattern might tell you to use a certain type of code to connect to the internet, or to check for errors in a certain way.

Using design patterns is a little like cooking with a recipe. You can make up your own recipes, but it's often easier to use a recipe that someone else has already tested and perfected. Design patterns are recipes for building software programs and websites that have been tested and perfected by lots of other people.