Question

If you have files staged (`git add`) and unstaged in your working directory, and you run `git stash`, what is the state of your staging area *immediately afterthe `git stash` command completes?

Accepted Answer

Immediately after the `git stash` command completes, the staging area will be clean and empty of any local modifications, effectively matching the state of the current `HEAD` commit. The `git stash` command is designed to temporarily save all local modifications from your working directory and staging area, allowing you to return to a clean working state. The staging area, also known as the index, is an intermediate area in Git where changes are collected and prepared for the next commit using the `git add` command. Staged files refer to modifications that have been moved into this staging area. Unstaged files are modifications present in your working directory that have not yet been added to the staging area. When you run `git stash`, it first captures the current state of both your working directory (which includes your unstaged changes) and your staging area (which contains your staged changes) into a new stash entry. After successfully saving these modifications, `git stash` then resets both your working directory and your staging area to match the state of the last commit (`HEAD`). Therefore, any changes that were previously marked as staged in the staging area are removed from it and become part of the saved stash entry, leaving the staging area in a pristine state.

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If you have files staged (`git add`) and unstaged in your working directory, and you run `git stash`, what is the state of your staging area *immediately afterthe `git stash` command completes?