When a developer merges their code into the main branch, it’s like adding a new piece to a puzzle that everyone is working on together.
Imagine you and your friends are building a big Lego castle. Each of you has your own small section to work on, like a tower or a bridge. When you finish your part, you merge it with the others so the whole castle becomes complete.
Like Adding Your Block to the Tower
Think of the main branch as the tallest tower in the middle of the castle. When a developer finishes their code, they take their block (or blocks) and put them on top of the main tower, this is the merge. Now everyone can see their work together.
Sometimes, if someone else added new blocks to the tower while you were working, your blocks might not fit perfectly at first, just like when two kids try to stack blocks at the same time. But the computer helps fix that so everything works smoothly again.
After the merge, all the friends (or developers) can use the updated castle (or code) for their next part of the project!
Examples
- The team member fixes a bug in their local copy of an app and merges it back into the main branch so others can use the fix.
- When a developer finishes writing code for a feature, they merge it into the main branch to combine all changes.
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See also
- Programming vs Coding - What's the difference?
- How Does Creating Your Own Programming Language - Computerphile Work?
- What are modules?
- What are programming languages?
- How Does Better C# - Reducing Complexity Work?