ConfigGenerator

What is a .gitignore file?

Definition and explanation of the .gitignore file used to exclude files from version control.

Definition

A .gitignore file is a plain text file that contains a list of rules and file paths that Git should completely ignore. Ignored files will not be staged, committed, or pushed to the remote repository.

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Why it matters

Without it, developers would accidentally commit massive dependencies (node_modules), sensitive secrets (.env), and OS-specific clutter (.DS_Store), which compromises repository security and performance.